The Results of Ahmed Valve Operations
Recruitment status was: Recruiting
|Study Design:||Observational Model: Defined Population
Primary Purpose: Screening
Time Perspective: Longitudinal
Time Perspective: Retrospective
|Official Title:||A Comparison Between Superior and Inferior Ahmed Glaucoma Valve Implantation: Surgical Success and Complications|
|Study Start Date:||January 1997|
|Estimated Study Completion Date:||June 2005|
Glaucoma drainage devices are usually placed in the superior quadrants. The superotemporal quadrant is usually the site of choice. However, when the upper fornix is scarred and especially when conjunctiva is two fibrotic to enable adequate coverage of tube with a scleral or other patch graft, some surgeons place the tube in one of inferior quadrants.
In the present study we will compare the outcome and complicatons of both the superior and the inferior approach for inserting Ahmed Valve implants.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00193960
|Department of Ophthalmology and visual sciences, Toronto Western Hospital,|
|Toronto, Ontario, Canada|
|Study Director:||Trope E Graham, MB, FRCSC||University of Toronto, Department of Ophthalmology|
|Study Director:||Rony Rachmiel, M.D||University of Toronto, Department of Ophthalmology|