Corneal Asphericity Adjustment (Q Adjustment) in Myopic and Hyperopic Patients Undergoing Refractive Correction With Excimer Laser

Completed

• Conditions: Myopia; Hyperopia

• Registration Number: NCT01296867
• Lead Sponsor: Democritus University of Thrace

Brief Summary

To study the postoperative results in myopic and hyperopic eyes treated with two different laser ablation algorithms (STD and F-CAT), both FDA approved.

Detailed Description

Not available

Study Timeline

• Study Start: 2006-03
• Primary Completion: 2009-03
• Study Completion: 2009-05
• Status Verified: 2011-02
• Study First Submitted: 2011-02-15
• Study First Submitted QC: 2011-02-15
• Last Update Submitted: 2011-02-15
• Study First Posted: 2011-02-16
• Last Update Posted: 2011-02-16

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 36

Inclusion Criteria

• Myopic and hyperopic eyes eligible for LASIK or PRK refractive correction
• Central corneal thickness more than 500 micrometers

Exclusion Criteria

• Topographies of less than 55% of successful total sampled area and eyes exhibiting asphericity variations, in either the horizontal or the vertical axis, greater than 0.2
• Corneal scarring
• Cataract surgery
• Corneal ulceration
• Topographical abnormalities

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified