Clinical Trials Logo
  1. Home
  2. Astigmatism
  3. NCT00778570
  4. Details
NCT00778570 Clinical Trial

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

Astigmatism Clinical Trial

Official title:
A Combined Retrospective and Prospective Chart Review Analysis of Visual Outcomes Following Excimer Laser Vision Correction

Clinical Trial Details — Status: Recruiting

Administrative data
NCT number NCT00778570
Other study ID # 2006800-01H
Secondary ID
Status Recruiting
Phase N/A
First received October 21, 2008
Last updated November 28, 2014
Start date February 2007
Est. completion date December 2020

Study information
Verified date November 2014
Source Ottawa Hospital Research Institute
Contact George Mintsioulis, MD
Phone 613-737-8926
Email gmintsioulis@ottawahospital.on.ca
Is FDA regulated No
Health authority Canada: Ethics Review Committee
Study type Observational

Clinical Trial 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.

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.

Recruitment information / eligibility
Status Recruiting
Enrollment 4000
Est. completion date December 2020
Est. primary completion date December 2020
Accepts healthy volunteers No
Gender Both
Age group N/A and older
Eligibility Inclusion Criteria:

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

Exclusion Criteria:

- There are no exclusion criteria; all patients that went forward with Excimer laser vision correction may be included.

Study Design

N/A

Related Conditions & MeSH terms

Locations
Country Name City State
Canada University of Ottawa Eye Institute Ottawa Ontario

Sponsors (1)
Lead Sponsor Collaborator
Ottawa Hospital Research Institute

Country where clinical trial is conducted

Canada, 

Outcome
Type Measure Description Time frame Safety issue
Primary Visual Acuity 1 day, 1W, 1M, 3M, 6M, 9M, 12M No
See also
  Status Clinical Trial Phase
Active, not recruiting NCT04778501 - PMCF Study on Monofocal Toric IOL (PODEYE TORIC) in Asia N/A
Completed NCT04536571 - Vision Stability and Preference for Soft Toric vs. Soft Spherical Contact Lenses N/A
Completed NCT04613882 - Quantification of the Visual Benefits of Soft Toric Contact Lenses Compared to Soft Spherical Contact Lenses N/A
Completed NCT05039112 - Clinical Comparison of 2 Daily Disposable Toric Soft Contact Lenses N/A
Recruiting NCT05611294 - Contralateral Study of Topography Guided LASIK Versus Small Incision Lenticule Extraction N/A
Completed NCT05633082 - A Clinical Performance of Two Soft Toric Contact Lenses N/A
Not yet recruiting NCT05506553 - Comparison of Aspheric Toric Intraocular Lenses for Micro-monovision N/A
Not yet recruiting NCT05561296 - Astigmatism Management With Iris-registration Guided Corneal Relaxing Incisions or Toric IOLs During Cataract Surgery N/A
Completed NCT02847169 - Clinical Performance of Toric Hydrogel Contact Lenses Following One Week of Daily Wear N/A
Recruiting NCT02618018 - Clinical Evaluation of Efficacy and Stability of AT TORBI 709M 4-haptic Toric IOL in Cataract Surgery N/A
Completed NCT02550353 - Changes Between Lenticule Extraction and Femtosecond Laser-assisted Laser in Situ Keratomileusis N/A
Completed NCT02551796 - Early Changes Among FLEx, LASIK and FS-LASIK N/A
Completed NCT02555098 - A Bilateral Dispensing Clinical Trial of an Sapphire Lens Against Senofilcon A Toric for Astigmatism Lens N/A
Completed NCT02423109 - Bilateral Dispensing Study of Fanfilcon A Toric Versus Enfilcon A Toric Lenses N/A
Completed NCT02248766 - Clinical Performance of Habitual Wearers of Avaira Toric When Refitted With Clariti Toric Lenses N/A
Completed NCT01965288 - Clinical Performance of Biofinity Toric Versus Air Optix for Astigmatism N/A
Completed NCT01857102 - Toric Eye Strain and Stability Study N/A
Completed NCT02624791 - Evaluating and Improving Functional Driving Vision of Patients With Astigmatism N/A
Withdrawn NCT01680354 - Surgical Correction of Astigmatism N/A
Completed NCT01207466 - Evaluation of Two Daily Disposable Contact Lenses for Wearers With Astigmatism N/A