The Effect of Ablation Depth on Dry Eye After LASIK Treatment of Myopia

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT03228784

Enrollment

Registered

2017-07-25

Start date

2013-06-01

Completion date

2014-05-01

Last updated

2017-07-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Incidence and Severity of Dry Eye After Myopic LASIK

Brief summary

The study tried to find the relation between ablation depth and degree of dryness after LASIK treatment of myopic patients

Interventions

PROCEDURELASIK

Study design

Allocation

Intervention model

SINGLE_GROUP

Primary purpose

DIAGNOSTIC

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

21 Years to No maximum

Inclusion criteria

* Patients with age ≥ 21 years * Normal Pentacam maps * Myopia with spherical equation less than 12 D * Corneal thickness ≥ 500 Microns * Calculated residual stromal bed ≥ 280 microns * No signs or symptoms of dry eye.

Exclusion criteria

: * Keratoconus and forme fruste keratoconus * Auto-immune diseases * History of dry eye or previous use of tear substitutes * Previous ocular surgery * Pregnant or lactating women.

Design outcomes

Primary

Measure	Time frame	Description
Incidence of dry eye	6 months	Schirmer 1 test in millimeters
Degree of dryness	6 months	Tear break up time in seconds

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026