Advanced Surface Ablation (ASA) vs Laser-Assisted In Situ Keratomileusis (LASIK)

Last updated: November 28, 2014
Sponsor: Ottawa Hospital Research Institute
Overall Status: Active - Recruiting

Phase

N/A

Condition

Myopia

Eye Disease

Eye Disorders/infections

Treatment

N/A

Clinical Study ID

NCT00778570
2006800-01H
  • All Genders

Study Summary

The purpose of this combined retrospective and prospective chart review analysis is to investigate the safety, efficacy, and predictability obtained via Laser-Assisted In Situ Keratomileusis (LASIK) and Advanced Surface Ablation (ASA) over a wide range of refractive errors

The working hypothesis is that there will be no difference in clinical outcomes between patients treated with LASIK or ASA.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Eyes that were treated for LASIK or ASA Excimer laser vision correction beforeDecember 1st 2006 and newly recruited eyes that qualify for LASIK or ASA Excimer laservision correction may be enrolled in this study.

Exclusion

Exclusion Criteria:

  • There are no exclusion criteria; all patients that went forward with Excimer laservision correction may be included.

Study Design

Total Participants: 4000
Study Start date:
February 01, 2007
Estimated Completion Date:
December 31, 2020

Study Description

Excimer laser vision correction (LVC) is a widely used procedure to correct nearsightedness, farsightedness, and astigmatism by reshaping the surface of the eye (cornea). Laser-Assisted In Situ Keratomileusis (LASIK) and Advanced Surface Ablation (ASA) and are techniques currently used to prepare the cornea for Excimer LVC.

This review is intended to study whether LASIK is equal in visual outcome (null hypothesis), more effective (alternate hypothesis 1) or less effective (alternate hypothesis 2) than ASA in clinical outcome up to one year.

Connect with a study center

  • University of Ottawa Eye Institute

    Ottawa, Ontario K1H 8L6
    Canada

    Active - Recruiting

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