# Oral lactoferrin × day-60 tear-film tests after cataract surgery

Verdict 2987 · Evidence Check

Stored-material review date: Not recorded  
Original evidence cut-off: 2026-09-07  
Review-criteria version: 1.0  
Public page/material preparation date: 2026-10-16

Clinical papers were not read directly; existing review summaries were checked. No new clinical-literature search was performed. Unverified does not mean that research is absent or that there is no effect.

## Assessment scope

- Population: Small-incision cataract surgery patients without pre-existing dry eye: 64 randomized and 58 completers. Detailed links among people, operated eyes, both eyes and repeated tests are unverified.
- Ingredient, formulation and route: Oral lactoferrin 350 mg/day was added to routine postoperative care. Details of formulation, actual exposure, adherence, co-ingredients and product support are unverified.
- Dose: 350 mg/day for 60 days from the day after surgery identifies existing research exposure. No dosing, cumulative amounts, product, postoperative-care or dry-eye treatment instructions are created.
- Comparator: The control received routine postoperative care alone. Routine drops and natural recovery in the historical counterview are distinguished; this is not converted into lactoferrin alone, replacement of drops or a placebo comparison.
- Measured outcome: Original day-60 tBUT 13.9 versus 7.86 seconds, Schirmer 30.9 versus 15.86 mm, and at least mild OSDI symptoms 26.6% versus 42.8% are preserved separately. Tests, symptoms and function are not combined into the same success; exact effects, CIs, test denominators and hierarchy are unverified.
- Duration: Existing results concern 60 days after surgery. Baseline, intermediate times, persistence after treatment, long-term outcomes and time-specific denominators are separately unverified.
- Questions outside this scope: Transferring tBUT/Schirmer test differences to the same efficacy for OSDI, daily function, visual recovery or all eye health; Extending day-60 results in a selected population without pre-existing dry eye to all chronic dry eye, other surgery or long-term efficacy; Calculating new differences, effects, CIs, noncompletion rates or event counts from the original 64 randomized/58 completers, 32 per group/28 and 30 analyzed/6 noncompleters, test values or symptom percentages; Adding people, operated eyes, both eyes, tests, repeated measurements, times or two sheets as independent trials or participants; Using nonreporting of selected symptoms, no financial/competing interests reported, parent Good safety/I2 or historical verification to certify overall/long-term safety, independence or completed content review now; Filling absent subclaim score/status/axes from parent C54 or generating dosing, product, surgery, postoperative-care or dry-eye treatment instructions

## Checklist items

### N01 · What are the selected postoperative tear-film claim and original verdict?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: The selected claim is “Improved tear-film tests 60 days after cataract surgery,” with original grade C and note “Both tBUT and Schirmer differed substantially.” Subclaim score, status and axes are unrecorded and distinguished from the parent test/symptom C54 context.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Detailed original material is needed on test definitions, surgical population, control, timing, denominators and question boundaries. Missing subclaim values are not filled from the parent.
- Required materials and conditions: Day-60 tear-film tests after cataract surgery; existing subclaim verdict
- Materials to obtain first: Detailed original material is needed on test definitions, surgical population, control, timing, denominators and question boundaries. Missing subclaim values are not filled from the parent.
- Further research: Material needed: Detailed original material is needed on test definitions, surgical population, control, timing, denominators and question boundaries. Missing subclaim values are not filled from the parent. This records needed materials; no new research was executed.
- Conditions for verification: Material for Day-60 tear-film tests after cataract surgery; existing subclaim verdict must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Day-60 tear-film tests after cataract surgery; existing subclaim verdict with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N02 · Who were the patients without pre-existing dry eye?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: The existing reader answer describes cataract patients without pre-existing dry eye. The other subclaim, “Treatment of chronic dry-eye disease in general,” retains grade ?. Results are not extended to patients with existing dry eye, other operations or all dry-eye disease.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Surgical and eligibility criteria, baseline tear-film measures and symptoms, excluded conditions and medicines, group baseline characteristics and actual eye/person denominators are needed.
- Required materials and conditions: Small-incision cataract surgery population; exclusion of pre-existing dry eye
- Materials to obtain first: Surgical and eligibility criteria, baseline tear-film measures and symptoms, excluded conditions and medicines, group baseline characteristics and actual eye/person denominators are needed.
- Further research: Material needed: Surgical and eligibility criteria, baseline tear-film measures and symptoms, excluded conditions and medicines, group baseline characteristics and actual eye/person denominators are needed. This records needed materials; no new research was executed.
- Conditions for verification: Material for Small-incision cataract surgery population; exclusion of pre-existing dry eye must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Small-incision cataract surgery population; exclusion of pre-existing dry eye with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N03 · What are the original day-60 tBUT values and units?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: Day-60 tBUT is recorded as 13.9 seconds in the lactoferrin group and 7.86 seconds in the control group. Original values are preserved; between-group differences, relative improvement and CIs are not newly calculated.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Test procedures and assessors, group baseline/follow-up values and denominators, adjustment, original effects, CIs, exact P values and rules for averaging repeated measurements are needed.
- Required materials and conditions: Tear-breakup time; seconds; control
- Materials to obtain first: Test procedures and assessors, group baseline/follow-up values and denominators, adjustment, original effects, CIs, exact P values and rules for averaging repeated measurements are needed.
- Further research: Material needed: Test procedures and assessors, group baseline/follow-up values and denominators, adjustment, original effects, CIs, exact P values and rules for averaging repeated measurements are needed. This records needed materials; no new research was executed.
- Conditions for verification: Material for Tear-breakup time; seconds; control must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Tear-breakup time; seconds; control with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N04 · Is Schirmer test 1 distinguished from tBUT?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: Day-60 Schirmer values are 30.9 mm with lactoferrin and 15.86 mm with control; the evidence-list endpoint is Schirmer test 1. Values in seconds, P values and effects from tBUT are not transferred to this test.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Actual test methods, timing and conditions, baseline/follow-up tables, group denominators, effects, CIs, P values and tested-eye units are needed. No new instructions for performing the test are given.
- Required materials and conditions: Tear test 1; millimeters; test conditions
- Materials to obtain first: Actual test methods, timing and conditions, baseline/follow-up tables, group denominators, effects, CIs, P values and tested-eye units are needed. No new instructions for performing the test are given.
- Further research: Material needed: Actual test methods, timing and conditions, baseline/follow-up tables, group denominators, effects, CIs, P values and tested-eye units are needed. No new instructions for performing the test are given. This records needed materials; no new research was executed.
- Conditions for verification: Material for Tear test 1; millimeters; test conditions must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Tear test 1; millimeters; test conditions with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N05 · Can the OSDI symptom proportion substitute for tear-film tests?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: The preserved proportions with at least mild OSDI symptoms are 26.6% with lactoferrin and 42.8% with control. Symptom proportions, tBUT and Schirmer are separate endpoints; event counts, effects and CIs are not calculated from these percentages.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: OSDI categories, measurement time, valid denominators, original continuous scores and proportions, effects, CIs and prespecified hierarchy are needed. Objective-test changes are not automatically combined into symptom or functional success.
- Required materials and conditions: Objective tests; proportion with at least mild OSDI symptoms
- Materials to obtain first: OSDI categories, measurement time, valid denominators, original continuous scores and proportions, effects, CIs and prespecified hierarchy are needed. Objective-test changes are not automatically combined into symptom or functional success.
- Further research: Material needed: OSDI categories, measurement time, valid denominators, original continuous scores and proportions, effects, CIs and prespecified hierarchy are needed. Objective-test changes are not automatically combined into symptom or functional success. This records needed materials; no new research was executed.
- Conditions for verification: Material for Objective tests; proportion with at least mild OSDI symptoms must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Objective tests; proportion with at least mild OSDI symptoms with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N06 · Was lactoferrin added to routine postoperative care?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: The existing research description compares routine postoperative care alone with added lactoferrin. The counterview also records routine eye drops and natural recovery. This is not changed into a comparison of lactoferrin alone or replacement of routine eye drops.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Materials on identical drops and postoperative care in each group, actual treatment changes, adherence, exposure and control procedures are needed. No instructions for surgery, drops, care or treatment replacement are given.
- Required materials and conditions: Added oral lactoferrin; routine postoperative care
- Materials to obtain first: Materials on identical drops and postoperative care in each group, actual treatment changes, adherence, exposure and control procedures are needed. No instructions for surgery, drops, care or treatment replacement are given.
- Further research: Material needed: Materials on identical drops and postoperative care in each group, actual treatment changes, adherence, exposure and control procedures are needed. No instructions for surgery, drops, care or treatment replacement are given. This records needed materials; no new research was executed.
- Conditions for verification: Material for Added oral lactoferrin; routine postoperative care must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Added oral lactoferrin; routine postoperative care with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N07 · What do 350 mg/day, the day after surgery and 60 days describe?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: The original intervention and product descriptions record oral lactoferrin 350 mg/day for 60 days from the day after small-incision surgery. These identify research exposure and do not create new dosing, cumulative amounts, postoperative-care or product advice.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Original product quantities, formulation and composition, actual exposure and adherence, controls and intervention deviations are needed. Cumulative amounts and doses are not newly calculated.
- Required materials and conditions: Oral formulation; research exposure; duration
- Materials to obtain first: Original product quantities, formulation and composition, actual exposure and adherence, controls and intervention deviations are needed. Cumulative amounts and doses are not newly calculated.
- Further research: Material needed: Original product quantities, formulation and composition, actual exposure and adherence, controls and intervention deviations are needed. Cumulative amounts and doses are not newly calculated. This records needed materials; no new research was executed.
- Conditions for verification: Material for Oral formulation; research exposure; duration must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Oral formulation; research exposure; duration with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N08 · Do other vitamin or omega-3 combinations have the same evidence?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: The existing product description states that efficacy of other vitamin or omega-3 combinations was not tested. Gaps in formulation, co-ingredients and manufacturing source remain; equivalence of ordinary products is not certified.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Materials on the original lactoferrin product, active quantity, composition, source, manufacture and actual control are needed. No product recommendations, combination-product effects or dosing advice are created.
- Required materials and conditions: Oral lactoferrin; boundaries between combinations and products
- Materials to obtain first: Materials on the original lactoferrin product, active quantity, composition, source, manufacture and actual control are needed. No product recommendations, combination-product effects or dosing advice are created.
- Further research: Material needed: Materials on the original lactoferrin product, active quantity, composition, source, manufacture and actual control are needed. No product recommendations, combination-product effects or dosing advice are created. This records needed materials; no new research was executed.
- Conditions for verification: Material for Oral lactoferrin; boundaries between combinations and products must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Oral lactoferrin; boundaries between combinations and products with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N09 · What are the 64 randomized patients, 58 completers and group denominators?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: The existing research description records 64 patients allocated 32 per group, with 6 not completing follow-up and 28 and 30 analyzed. Numbers and their original order are preserved; noncompletion rates and estimated event counts are not newly calculated.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Group allocation/completion/analysis flow, reasons and times of attrition, valid denominators for each test and OSDI, ITT and missing-data handling are needed. Detailed group tables were not compared this time.
- Required materials and conditions: 32 allocated per group; 28 and 30 analyzed; 6 noncompleters
- Materials to obtain first: Group allocation/completion/analysis flow, reasons and times of attrition, valid denominators for each test and OSDI, ITT and missing-data handling are needed. Detailed group tables were not compared this time.
- Further research: Material needed: Group allocation/completion/analysis flow, reasons and times of attrition, valid denominators for each test and OSDI, ITT and missing-data handling are needed. Detailed group tables were not compared this time. This records needed materials; no new research was executed.
- Conditions for verification: Material for 32 allocated per group; 28 and 30 analyzed; 6 noncompleters must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects 32 allocated per group; 28 and 30 analyzed; 6 noncompleters with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N10 · Are people, operated eyes, both eyes and repeated tests the same unit?

Verification status: Unverified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: Counts in the existing summary refer to patients or participants. Detailed units for operated eyes, both eyes, selection of tested eyes, correlations between eyes and repeated tests are not established. Two eyes or repeated measurements from one person are not counted as independent participants.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Operated side, tested eyes, person-eye links, original monocular/binocular denominators, eye-selection rules and correlation/repeated-measure analyses are needed. Eye counts and participant totals are not newly calculated.
- Required materials and conditions: Participant counts; tested eyes; analysis units
- Materials to obtain first: Operated side, tested eyes, person-eye links, original monocular/binocular denominators, eye-selection rules and correlation/repeated-measure analyses are needed. Eye counts and participant totals are not newly calculated.
- Further research: Material needed: Operated side, tested eyes, person-eye links, original monocular/binocular denominators, eye-selection rules and correlation/repeated-measure analyses are needed. Eye counts and participant totals are not newly calculated. This records needed materials; no new research was executed.
- Conditions for verification: Material for Participant counts; tested eyes; analysis units must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Participant counts; tested eyes; analysis units with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N11 · Are day-60 results distinguished from baseline, other times and persistence?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: Key numbers concern 60 days after surgery. Differences in changes from baseline, intermediate times, persistence after treatment and denominators at other times are separately unverified. Natural recovery and routine drops retain their original context; day-60 values are not transferred to other times.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Group baseline/intermediate/day-60/follow-up tables and denominators, between-group changes, CIs and concurrent surgical/drop care are needed. No new follow-up duration or effect is created.
- Required materials and conditions: Time-specific tests; natural recovery; persistence
- Materials to obtain first: Group baseline/intermediate/day-60/follow-up tables and denominators, between-group changes, CIs and concurrent surgical/drop care are needed. No new follow-up duration or effect is created.
- Further research: Material needed: Group baseline/intermediate/day-60/follow-up tables and denominators, between-group changes, CIs and concurrent surgical/drop care are needed. No new follow-up duration or effect is created. This records needed materials; no new research was executed.
- Conditions for verification: Material for Time-specific tests; natural recovery; persistence must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Time-specific tests; natural recovery; persistence with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N12 · How were simple randomization, open-label design and no placebo recorded?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: The existing design is a single-center nonblinded simple-randomized parallel trial, with open-label, no-placebo completer analysis. Concordant directions in two objective tests do not certify absence of masking, allocation or measurement bias.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Allocation methods and concealment, assessors and test procedures, matching routine care, missingness, selective reporting and original methods are needed. No new official RoB/GRADE rating or content-review approval is assigned.
- Required materials and conditions: Allocation; masked assessment; concurrent care
- Materials to obtain first: Allocation methods and concealment, assessors and test procedures, matching routine care, missingness, selective reporting and original methods are needed. No new official RoB/GRADE rating or content-review approval is assigned.
- Further research: Material needed: Allocation methods and concealment, assessors and test procedures, matching routine care, missingness, selective reporting and original methods are needed. No new official RoB/GRADE rating or content-review approval is assigned. This records needed materials; no new research was executed.
- Conditions for verification: Material for Allocation; masked assessment; concurrent care must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Allocation; masked assessment; concurrent care with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N13 · Are exact effects and CIs for the large test differences verified?

Verification status: Unverified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: Original tBUT values of 13.9 and 7.86 seconds and Schirmer values of 30.9 and 15.86 mm are signals in two objective tests. Exact between-group/change effects, 95% CIs, P values, variance definitions and test denominators absent from this summary are not reconstructed.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Test-specific original tables, between-group estimands, models, variance, CIs, P values, denominators and baseline adjustment are needed. No new effect sizes or hypothetical quantitative examples are created.
- Required materials and conditions: Original group values; adjusted/change estimates; precision
- Materials to obtain first: Test-specific original tables, between-group estimands, models, variance, CIs, P values, denominators and baseline adjustment are needed. No new effect sizes or hypothetical quantitative examples are created.
- Further research: Material needed: Test-specific original tables, between-group estimands, models, variance, CIs, P values, denominators and baseline adjustment are needed. No new effect sizes or hypothetical quantitative examples are created. This records needed materials; no new research was executed.
- Conditions for verification: Material for Original group values; adjusted/change estimates; precision must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Original group values; adjusted/change estimates; precision with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N14 · Is the prespecified hierarchy of both tests and OSDI verified?

Verification status: Unverified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: Existing endpoints list tBUT, Schirmer test 1 and OSDI together. Their prespecified primary/secondary hierarchy, multiplicity and registration identifiers/dates are separately unverified. No NCT identifiers or plan URLs are invented.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Registration, protocols, SAPs, amendment histories, test/symptom hierarchy, times and analysis-population materials are needed. Unread material is not converted into failed prespecification or absence of research.
- Required materials and conditions: Primary/secondary endpoints; multiplicity; registration and plans
- Materials to obtain first: Registration, protocols, SAPs, amendment histories, test/symptom hierarchy, times and analysis-population materials are needed. Unread material is not converted into failed prespecification or absence of research.
- Further research: Material needed: Registration, protocols, SAPs, amendment histories, test/symptom hierarchy, times and analysis-population materials are needed. Unread material is not converted into failed prespecification or absence of research. This records needed materials; no new research was executed.
- Conditions for verification: Material for Primary/secondary endpoints; multiplicity; registration and plans must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Primary/secondary endpoints; multiplicity; registration and plans with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N15 · Can test improvement be extended to treatment of chronic dry eye in general?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: The existing summary and other subclaim retain exclusion of patients with pre-existing dry eye. Test signals are not established as the same efficacy for all chronic dry-eye disease, eye health, visual recovery or surgical outcomes.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Direct trials in each condition/population, patient-important symptoms and function, comparators, durations, effects and CIs are needed. No postoperative-care or dry-eye treatment instructions are given.
- Required materials and conditions: Selected postoperative population; symptoms; function; applicability
- Materials to obtain first: Direct trials in each condition/population, patient-important symptoms and function, comparators, durations, effects and CIs are needed. No postoperative-care or dry-eye treatment instructions are given.
- Further research: Material needed: Direct trials in each condition/population, patient-important symptoms and function, comparators, durations, effects and CIs are needed. No postoperative-care or dry-eye treatment instructions are given. This records needed materials; no new research was executed.
- Conditions for verification: Material for Selected postoperative population; symptoms; function; applicability must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Selected postoperative population; symptoms; function; applicability with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N16 · Is nonreporting of some symptoms the same as long-term safety?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: Existing explanations record no reported diarrhea, appetite loss, rash or constipation among 58 analyzed patients. This does not certify absence of all harms, long-term safety or the same safety in people with allergies, other illnesses or medicines.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Harms-collection definitions and active surveillance, exposure and denominators per group, discontinuation, attrition, other harms and long-term population data are needed. No new harm rates, zero-event examples or treatment advice are created.
- Required materials and conditions: Diarrhea, appetite loss, rash and constipation; collection scope
- Materials to obtain first: Harms-collection definitions and active surveillance, exposure and denominators per group, discontinuation, attrition, other harms and long-term population data are needed. No new harm rates, zero-event examples or treatment advice are created.
- Further research: Material needed: Harms-collection definitions and active surveillance, exposure and denominators per group, discontinuation, attrition, other harms and long-term population data are needed. No new harm rates, zero-event examples or treatment advice are created. This records needed materials; no new research was executed.
- Conditions for verification: Material for Diarrhea, appetite loss, rash and constipation; collection scope must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Diarrhea, appetite loss, rash and constipation; collection scope with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N17 · Were the same trial, eyes and conditions kept out of independent-data totals?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: Parent verdict 2987 and its two subclaims share the same original-report context. Two sheets, tear-film tests, conditions, eyes and repeated measurements are not counted as new independent trials or participants. Unique-trial and unique-participant totals remain unverified.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Links among reports, cohorts, people, eyes, times, conditions and analysis populations are needed. Material counts are not quality scores or unique-trial counts.
- Required materials and conditions: Shared parent, two subclaims, bibliography and participants
- Materials to obtain first: Links among reports, cohorts, people, eyes, times, conditions and analysis populations are needed. Material counts are not quality scores or unique-trial counts.
- Further research: Material needed: Links among reports, cohorts, people, eyes, times, conditions and analysis populations are needed. Material counts are not quality scores or unique-trial counts. This records needed materials; no new research was executed.
- Conditions for verification: Material for Shared parent, two subclaims, bibliography and participants must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Shared parent, two subclaims, bibliography and participants with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N18 · What material was actually read during this production?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: The complete parent-verdict JSON summary was read for production and preserved in its original form. External abstracts, full text, registration, protocols and SAPs remain unread. A source URL or PMCID does not establish actual access, reading or fulfillment of a condition.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Actual original texts, supplements, registration, plans and reading records are needed. Historical full-text verification is not inherited as external reading in this work.
- Required materials and conditions: Complete stored summary; external reading scope
- Materials to obtain first: Actual original texts, supplements, registration, plans and reading records are needed. Historical full-text verification is not inherited as external reading in this work.
- Further research: Material needed: Actual original texts, supplements, registration, plans and reading records are needed. Historical full-text verification is not inherited as external reading in this work. This records needed materials; no new research was executed.
- Conditions for verification: Material for Complete stored summary; external reading scope must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Complete stored summary; external reading scope with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N19 · How far are the original bibliography and registration identifiers linked?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: The original citation's PMID 26557550, PMCID PMC4625269, DOI 10.7860/JCDR/2015/15797.6670 and PubMed URL are linked. No separate registration number is present in the original evidence/citation; actual registration status remains unverified.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Exact links among the paper, full text and registration, and materials on content and dates are needed. New full-text or registration URLs are not inferred from identifiers.
- Required materials and conditions: PMID, PMCID, DOI and registration information
- Materials to obtain first: Exact links among the paper, full text and registration, and materials on content and dates are needed. New full-text or registration URLs are not inferred from identifiers.
- Further research: Material needed: Exact links among the paper, full text and registration, and materials on content and dates are needed. New full-text or registration URLs are not inferred from identifiers. This records needed materials; no new research was executed.
- Conditions for verification: Material for PMID, PMCID, DOI and registration information must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects PMID, PMCID, DOI and registration information with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N20 · Are historical verification statements in both languages distinguished from this review?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: Korean/English texts, subclaim and note, and historical statements about PMC full text, bibliography, effect-size and scoring checks are preserved. This work separates stored material; it is not a new clinical review, calculation or verdict.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Content review of original texts, translation, corrections and question boundaries is needed. Historical statements are not labeled as completed content review or independent clinical validation in this work.
- Required materials and conditions: Korean/English texts; existing claim; historical verification scope
- Materials to obtain first: Content review of original texts, translation, corrections and question boundaries is needed. Historical statements are not labeled as completed content review or independent clinical validation in this work.
- Further research: Material needed: Content review of original texts, translation, corrections and question boundaries is needed. Historical statements are not labeled as completed content review or independent clinical validation in this work. This records needed materials; no new research was executed.
- Conditions for verification: Material for Korean/English texts; existing claim; historical verification scope must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Korean/English texts; existing claim; historical verification scope with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N21 · Are subclaim values distinguished from parent C54, axes and safety?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: Original subclaim grade C and note, and absence of subclaim score, status and axes are retained. Parent C54, Good safety, B/S/R1/I2/E+/B2, unrecorded precision, four false flags and empty override reasons are parent context. They do not fill subclaim values or certify long-term safety or independence.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Content review of the selected record and original parent values is needed. No new efficacy grade, score, axes or regrading is created.
- Required materials and conditions: Subclaim grade/note; absent score, status and axes
- Materials to obtain first: Content review of the selected record and original parent values is needed. No new efficacy grade, score, axes or regrading is created.
- Further research: Material needed: Content review of the selected record and original parent values is needed. No new efficacy grade, score, axes or regrading is created. This records needed materials; no new research was executed.
- Conditions for verification: Material for Subclaim grade/note; absent score, status and axes must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Subclaim grade/note; absent score, status and axes with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N22 · Are the evidence date, correction history and production date distinguished?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: The original evidence date 2026-09-07, empty corrections array and empty deliberation string are retained. The evidence date is not this production/review date and does not certify absence of external corrections.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Actual follow-up/correction sources, complete prechange text and event histories are needed. Missing dates and correction values are not invented.
- Required materials and conditions: Evidence date; empty correction and deliberation records
- Materials to obtain first: Actual follow-up/correction sources, complete prechange text and event histories are needed. Missing dates and correction values are not invented.
- Further research: Material needed: Actual follow-up/correction sources, complete prechange text and event histories are needed. Missing dates and correction values are not invented. This records needed materials; no new research was executed.
- Conditions for verification: Material for Evidence date; empty correction and deliberation records must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Evidence date; empty correction and deliberation records with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N23 · Are funding, product support, employee authors and analysis roles distinguished?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: The original funding wording is “No financial or competing interests reported.” This is not new certification that product support, employee authors and involvement in analysis/reporting were all verified in detail. Original randomization/independence statements also remain historical records.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Original funding/COI declarations, product support, affiliations and analysis/publication roles are needed. Parent I2 is not promoted to new independence certification.
- Required materials and conditions: Four company-related aspects; historical independence statements
- Materials to obtain first: Original funding/COI declarations, product support, affiliations and analysis/publication roles are needed. Parent I2 is not promoted to new independence certification.
- Further research: Material needed: Original funding/COI declarations, product support, affiliations and analysis/publication roles are needed. Parent I2 is not promoted to new independence certification. This records needed materials; no new research was executed.
- Conditions for verification: Material for Four company-related aspects; historical independence statements must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Four company-related aspects; historical independence statements with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N24 · Are allocation, measurement, missingness and selective-reporting details verified?

Verification status: Unverified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: Open-label, no-placebo completer design and distinctions between objective tests and symptoms are retained. Details of allocation concealment, tested eyes, assessors, denominators, missingness and selective reporting are separately unverified.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Methods, protocols, SAPs, registration/amendment histories, original tables, effects of interest and denominators are needed. Design labels alone do not certify official RoB/GRADE ratings or review approval.
- Required materials and conditions: Design; endpoint hierarchy; denominators
- Materials to obtain first: Methods, protocols, SAPs, registration/amendment histories, original tables, effects of interest and denominators are needed. Design labels alone do not certify official RoB/GRADE ratings or review approval.
- Further research: Material needed: Methods, protocols, SAPs, registration/amendment histories, original tables, effects of interest and denominators are needed. Design labels alone do not certify official RoB/GRADE ratings or review approval. This records needed materials; no new research was executed.
- Conditions for verification: Material for Design; endpoint hierarchy; denominators must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Design; endpoint hierarchy; denominators with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N25 · Are actual exposure, concurrent care and repeated measurements verified?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: Original oral 350 mg/day for 60 days added to routine postoperative care is preserved as research-identification information. Actual adherence, formulation, eye-drop care, treatment changes and endpoint-specific denominator details are unverified.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Product/formulation quantities, actual exposure, concurrent care, intervention deviations and denominators are needed. No new cumulative calculation, intake, product, eye-health or postoperative-care instructions are created.
- Required materials and conditions: Research-intervention identity; adherence; co-interventions
- Materials to obtain first: Product/formulation quantities, actual exposure, concurrent care, intervention deviations and denominators are needed. No new cumulative calculation, intake, product, eye-health or postoperative-care instructions are created.
- Further research: Material needed: Product/formulation quantities, actual exposure, concurrent care, intervention deviations and denominators are needed. No new cumulative calculation, intake, product, eye-health or postoperative-care instructions are created. This records needed materials; no new research was executed.
- Conditions for verification: Material for Research-intervention identity; adherence; co-interventions must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Research-intervention identity; adherence; co-interventions with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N26 · Are the scope of harms reports and actual denominators distinguished?

Verification status: Unverified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: The existing record states no reported diarrhea, appetite loss, rash or constipation among 58 analyzed patients. Group-specific collection/exposure denominators, harms among those lost to follow-up and rates of other harms are separately unverified.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Harms definitions, active collection, actual group exposure/denominators, discontinuation, attrition, severity and original control materials are needed. Existing “Good” safety is not transferred to all populations and durations.
- Required materials and conditions: Existing safety description; collection/exposure denominators
- Materials to obtain first: Harms definitions, active collection, actual group exposure/denominators, discontinuation, attrition, severity and original control materials are needed. Existing “Good” safety is not transferred to all populations and durations.
- Further research: Material needed: Harms definitions, active collection, actual group exposure/denominators, discontinuation, attrition, severity and original control materials are needed. Existing “Good” safety is not transferred to all populations and durations. This records needed materials; no new research was executed.
- Conditions for verification: Material for Existing safety description; collection/exposure denominators must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Existing safety description; collection/exposure denominators with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N27 · What are the boundaries for long-term/rare harms and other populations?

Verification status: Unverified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: The existing safety description retains the limitation that 60-day postoperative completer results cannot establish long-term safety in people with milk-protein allergy, other illnesses or medicines.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Long-term exposure/follow-up, harms surveillance, risk groups, medicines, group denominators, CIs and actual events are needed. No new treatment, intake, surgery or care instructions are given.
- Required materials and conditions: Original duration; illnesses; medicines; long-term scope
- Materials to obtain first: Long-term exposure/follow-up, harms surveillance, risk groups, medicines, group denominators, CIs and actual events are needed. No new treatment, intake, surgery or care instructions are given.
- Further research: Material needed: Long-term exposure/follow-up, harms surveillance, risk groups, medicines, group denominators, CIs and actual events are needed. No new treatment, intake, surgery or care instructions are given. This records needed materials; no new research was executed.
- Conditions for verification: Material for Original duration; illnesses; medicines; long-term scope must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Original duration; illnesses; medicines; long-term scope with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

### N28 · What material would trigger a sheet update?

Verification status: Partly verified  
Reading scope: Stored summary read; external abstracts, full texts, registration, protocols and SAPs unread

- Current findings: This table transfers stored material on day-60 postoperative tear-film tests. Relevant observations can be updated after content review of original tables, measures, times, people, eyes, denominators, actual controls, concurrent care, follow-up, support and harms.
- Why unverified: The selected claim, parent material and reports are distinguished and transferred from the stored summary. Detailed original material is unverified and review of existing content remains incomplete. This does not establish completed clinical review or certification.
- Reason for missing information: Complete prechange text and records of condition versions, separate application and content review are needed. Added material, revised conditions and verdict changes remain separate events; no new research, calculations or regrading are executed.
- Required materials and conditions: Distinguishing conditions, observations, original material and verdict changes
- Materials to obtain first: Complete prechange text and records of condition versions, separate application and content review are needed. Added material, revised conditions and verdict changes remain separate events; no new research, calculations or regrading are executed.
- Further research: Material needed: Complete prechange text and records of condition versions, separate application and content review are needed. Added material, revised conditions and verdict changes remain separate events; no new research, calculations or regrading are executed. This records needed materials; no new research was executed.
- Conditions for verification: Material for Distinguishing conditions, observations, original material and verdict changes must be linked to the selected subclaim, parent context, original report, test units, times, comparator and denominators, distinguishing unread external material.
- Why this condition is needed: This condition connects Distinguishing conditions, observations, original material and verdict changes with the selected question, actual surgical population, oral intervention, routine-care control, tests and symptoms, time points, people and eyes, denominators and harms.
- Application exceptions: Preserve original numbers while distinguishing the selected population without pre-existing dry eye from general chronic dry eye, oral add-on treatment from routine care/natural recovery, tBUT/Schirmer/OSDI, people/eyes/repeated tests, times, denominators, exposure, support, harms and unread external material. No new calculations, hypothetical examples, effects, CIs, regrading, independence certification, dosing, product, eye-health, surgery, postoperative-care or dry-eye treatment instructions are created.
- Remaining uncertainty: External original material is unread and review of existing content remains incomplete. Original grades, scores, axes, historical verification and independence statements are not treated as new verdicts or certification.
- Referenced methods: Preserved C/E/H application conditions concerning questions, populations, interventions, comparators, reports versus studies, endpoints, denominators and harms were referenced.
- Related sources: R01

## Evidence and sources

### R01

Devendra J, Singh S. Effect of Oral Lactoferrin on Cataract Surgery Induced Dry Eye: A Randomised Controlled Trial. J Clin Diagn Res. 2015;9(10):NC06-NC09. PMID: 26557550. PMCID: PMC4625269. DOI: 10.7860/JCDR/2015/15797.6670.

[PubMed](https://pubmed.ncbi.nlm.nih.gov/26557550/)

Materials actually read: Stored summary read; external abstracts, full texts, registrations and plans unread  
Findings recorded in the summary: Day-60 tBUT 13.9 versus 7.86 seconds; Schirmer 30.9 versus 15.86 mm; at least mild OSDI symptoms 26.6% versus 42.8%  
Record level: Stored efficacy summary; distinguish day-60 postoperative objective tests, separate OSDI symptom proportions and the completer-analysis scope  
Independent replication: Parent verdict 2987 and two subclaim sheets share the postoperative cataract study in the single Devendra and Singh 2015 report. Original 64 randomized, 58 completers, 32 allocated per group, 28 and 30 analyzed and 6 noncompleters are retained; people, eyes, repeated tests, conditions, times and sheets are not added as independent trials or participants. tBUT/Schirmer tests are distinguished from OSDI symptom proportions, and day-60 postoperative results from general chronic dry eye. Confirmed unique-trial, participant and independent-replication totals remain unrecorded.

| Material | Public availability | Access status | Actually read | Notes |
|---|---|---|---|---|
| Stored summary | Preserved copy of the complete parent-verdict stored summary | Stored summary read | Summary read | Original PubMed URL and PMCID/registration-identification records are preserved. No new reading, access, prespecification or condition fulfillment is certified; full-text/registration URLs are not inferred. |
| External abstract | Original bibliographic link or needed material; external public availability/access status unverified | Unread; access not attempted | Not read | Original PubMed URL and PMCID/registration-identification records are preserved. No new reading, access, prespecification or condition fulfillment is certified; full-text/registration URLs are not inferred. |
| External full text | Original bibliographic link or needed material; external public availability/access status unverified | Unread; access not attempted | Not read | Original PubMed URL and PMCID/registration-identification records are preserved. No new reading, access, prespecification or condition fulfillment is certified; full-text/registration URLs are not inferred. |
| Original registration | Original bibliographic link or needed material; external public availability/access status unverified | Unread; access not attempted | Not read | Original PubMed URL and PMCID/registration-identification records are preserved. No new reading, access, prespecification or condition fulfillment is certified; full-text/registration URLs are not inferred. |
| Original protocol | Original bibliographic link or needed material; external public availability/access status unverified | Unread; access not attempted | Not read | Original PubMed URL and PMCID/registration-identification records are preserved. No new reading, access, prespecification or condition fulfillment is certified; full-text/registration URLs are not inferred. |

## Review criteria and methods

These are Chamgap's own application conditions, informed by the relevant sections of official methodological guidance. They do not constitute official assessment-tool certification or a new efficacy score.

- M03 [Cochrane Handbook 6.5 (2024), chapter updated 2023-08](https://www.cochrane.org/authors/handbooks-and-manuals/handbook/current/chapter-03) · §3.1, §3.2.1–3.2.3, MECIR C5/C7/C13 · Clearly record the question, eligibility conditions and reasons for changes, and distinguish variations in interventions. · Link preserved methodological application records; no current clinical-content reassessment or external-link verification was performed.
- M04 [Cochrane Handbook 6.5.1 (2025), chapter updated 2025-03](https://www.cochrane.org/authors/handbooks-and-manuals/handbook/current/chapter-04) · §4.5, §4.6.1–4.6.3, MECIR C42 · Distinguish studies from reports and link them; do not omit a study solely because results are unreported. · Link preserved methodological application records; no current clinical-content reassessment or external-link verification was performed.
- M08 [Cochrane Handbook 6.5 (2024), chapter updated 2019-10](https://www.cochrane.org/authors/handbooks-and-manuals/handbook/current/chapter-08) · §8.1–8.2.3, Table 8.2.a · Define the outcome and effect of interest, then examine randomization, deviations, missing data, measurement and selective reporting. · Link preserved methodological application records; no current clinical-content reassessment or external-link verification was performed.
- M15 [Cochrane Handbook 6.5 (2024), chapter updated 2023-08](https://www.cochrane.org/authors/handbooks-and-manuals/handbook/current/chapter-15) · §15.2.4, §15.3.1–15.3.3 · Distinguish effect estimates, intervals, importance and applicability. Sample size alone does not determine precision. · Link preserved methodological application records; no current clinical-content reassessment or external-link verification was performed.
- M19 [Cochrane Handbook 6.5 (2024), chapter updated 2019-10](https://www.cochrane.org/authors/handbooks-and-manuals/handbook/current/chapter-19) · §19.1.2, §19.2.1–19.2.4 · Harm questions may require different designs, populations and follow-up from efficacy questions. Case reports do not establish incidence rates. · Link preserved methodological application records; no current clinical-content reassessment or external-link verification was performed.

## What the statuses mean

- Partly verified: Some information exists in the preserved review summary; detailed original materials remain unverified. This does not certify a passed review or clinical efficacy.
- Unverified: Detailed materials for the selected condition could not be established within the stored scope; this does not mean zero effect, zero studies or safety
- Review incomplete: Review of existing content incomplete
- Met: Use only within the relevant conditions after existing content review; no automatic designation in this preparation
- Not reported: Distinguish only within materials actually read; do not turn unread external materials into unreported findings
- Inaccessible: Not applied during this preparation because actual access was not tested
- Not applicable: Use with a reason for non-applicability based on an explicit question boundary
- Conflicting data: Judge after actual material comparison; review was not performed during this preparation
- Insufficient evidence for the conditions: Do not use as a clinical grade encompassing currently unread materials

## Change history

2026-10-16 · Public page/materials 1.0. Public reader pages and material were prepared from the existing 28 items. No new clinical searches, verification-state changes or scoring were performed.