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

This study has been completed.
Sponsor:
Information provided by:
Democritus University of Thrace
ClinicalTrials.gov Identifier:
NCT01296867
First received: February 15, 2011
Last updated: NA
Last verified: February 2011
History: No changes posted

February 15, 2011
February 15, 2011
March 2006
March 2009   (final data collection date for primary outcome measure)
Not Provided
Not Provided
No Changes Posted
Not Provided
Not Provided
Not Provided
Not Provided
 
Corneal Asphericity Adjustment (Q Adjustment) in Myopic and Hyperopic Patients Undergoing Refractive Correction With Excimer Laser
Not Provided

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

Not Provided
Observational
Observational Model: Cohort
Time Perspective: Prospective
Not Provided
Not Provided
Non-Probability Sample

Forty eight myopic (24 patients) and 24 hyperopic eyes (12 patients)

  • Myopia
  • Hyperopia
Not Provided
Not Provided
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
36
May 2009
March 2009   (final data collection date for primary outcome measure)

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
Both
Not Provided
Yes
Contact information is only displayed when the study is recruiting subjects
Not Provided
 
NCT01296867
Q-value
No
Eleftherios Paschalis / PhD, Eye Institute of Thrace / Democritus University
Democritus University of Thrace
Not Provided
Not Provided
Democritus University of Thrace
February 2011

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP