Ischemic Optic Neuropathy Decompression Trial Followup (IONDT Followup)
1 other identifier
observational
N/A
1 country
24
Brief Summary
To follow all patients enrolled in the original Ischemic Optic Neuropathy Decompression Trial (IONDT) to determine (1) the incidence of non-arteritic ischemic optic neuropathy (NAION) in the second eye, (2) changes in visual acuity over time in both the study and second eye, and (3) other aspects of the natural history of NAION.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
24 active sites
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Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
October 1, 1994
CompletedFirst Submitted
Initial submission to the registry
September 23, 1999
CompletedFirst Posted
Study publicly available on registry
September 24, 1999
CompletedMay 26, 2006
October 1, 2003
September 23, 1999
May 25, 2006
Conditions
Keywords
Interventions
Eligibility Criteria
Contact the study team to discuss eligibility requirements. They can help determine if this study is right for you.
Sponsors & Collaborators
Study Sites (24)
Doheny Eye Institute, University of Southern California
Los Angeles, California, United States
Jules Stein Eye Institute
Los Angeles, California, United States
Department of Ophthalmology, University of California, San Francisco
San Francisco, California, United States
Department of Ophthalmology, University of Florida
Gainesville, Florida, United States
Emory Eye Center, Emory University
Atlanta, Georgia, United States
Department of Ophthalmology, University of Illinois
Chicago, Illinois, United States
Department of Ophthalmology, University of Kentucky
Lexington, Kentucky, United States
University of Maryland
Baltimore, Maryland, United States
W.K. Kellogg Eye Center, University of Michigan
Ann Arbor, Michigan, United States
Department of Ophthalmology, Michigan State University
East Lansing, Michigan, United States
William Beaumont Eye Institute, William Beaumont Hospital
Royal Oak, Michigan, United States
Mayo Clinic
Rochester, Minnesota, United States
Mason Institute of Ophthalmology, University of Missouri - Columbia
Columbia, Missouri, United States
St. Louis University, Anheuser-Busch Eye Institute
St Louis, Missouri, United States
SUNY Health Science Center, Department of Neurology
Syracuse, New York, United States
Carolinas Medical Center
Charlotte, North Carolina, United States
The Cleveland Clinic Foundation
Cleveland, Ohio, United States
Allegheny General Hospital
Pittsburgh, Pennsylvania, United States
University of South Carolina, Department of Ophthalmology
Columbia, South Carolina, United States
University of Texas
Houston, Texas, United States
University of Utah, Department of Ophthalmology
Salt Lake City, Utah, United States
University of Virginia, Department of Ophthalmology
Charlottesville, Virginia, United States
Medical College of Virginia, Department of Neurology
Richmond, Virginia, United States
West Virginia University, Department of Neurology
Morgantown, West Virginia, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Time Perspective
- OTHER
- Sponsor Type
- NIH
Study Record Dates
First Submitted
September 23, 1999
First Posted
September 24, 1999
Study Start
October 1, 1994
Last Updated
May 26, 2006
Record last verified: 2003-10