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

NCT ID: NCT01296867

Last Updated: 2011-02-16

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 36 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2006-03-31
• Study Completion Date: 2009-05-31

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.

Conditions

Myopia; Hyperopia

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: PROSPECTIVE

Eligibility Criteria

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

• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Democritus University of Thrace

OTHER

Sponsor Role: lead

Responsible Party

Eye Institute of Thrace / Democritus University

Other Identifiers

Q-value

Identifier Type: -

Identifier Source: org_study_id