Advanced Surface Ablation (ASA) vs Laser-Assisted In Situ Keratomileusis (LASIK)
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|ClinicalTrials.gov Identifier: NCT00778570|
Recruitment Status : Recruiting
First Posted : October 23, 2008
Last Update Posted : December 2, 2014
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.
|Condition or disease|
|Nearsightedness Farsightedness Astigmatism|
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.
|Study Type :||Observational|
|Estimated Enrollment :||4000 participants|
|Official Title:||A Combined Retrospective and Prospective Chart Review Analysis of Visual Outcomes Following Excimer Laser Vision Correction|
|Study Start Date :||February 2007|
|Estimated Primary Completion Date :||December 2020|
|Estimated Study Completion Date :||December 2020|
Participants treated for Excimer laser vision correction using Advanced Surface Ablation (ASA).
Participants treated for Excimer laser vision correction using Laser-Assisted In Situ Keratomileusis (LASIK)
- Visual Acuity [ Time Frame: 1 day, 1W, 1M, 3M, 6M, 9M, 12M ]
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00778570
|Contact: George Mintsioulis, MDfirstname.lastname@example.org|
|Contact: W.Bruce Jackson, MDemail@example.com|
|University of Ottawa Eye Institute||Recruiting|
|Ottawa, Ontario, Canada, K1H 8L6|
|Contact: Gail Kayuk, BSc 613-737-8657 firstname.lastname@example.org|
|Principal Investigator: George Minstioulis, MD|
|Principal Investigator:||George Mintsioulis, MD||University of Ottawa Eye Institute|