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

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

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Key information

Conditions

Incidence and Severity of Dry Eye After Myopic LASIK

Age range

21 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Who can participate

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

LASIK

Procedure

Other names: Corneal Flap creation with mechanical microkeratome and stromal ablation with Excimerr laser.

Primary outcomes

Incidence of dry eye

Time frame: 6 months

Schirmer 1 test in millimeters
Degree of dryness

Time frame: 6 months

Tear break up time in seconds

Sponsors and collaborators

Lead sponsor

Minia University

Other

Registry information

Important dates

Study start: 2013
Primary completion: 2014
Study completion: 2014
First posted: Jul 25, 2017
Registry last updated: Jul 25, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.