RISK FACTORS FOR CHOROIDAL NEOVASCULARIZATION AND VISION LOSS IN THE FELLOW EYE STUDY OF CNVPT.
PRENNER, JONATHAN L. MD *; ROSENBLATT, BRETT J. MD +; TOLENTINO, MICHAEL J. MD ++; YING, GUI-SHUANG MS ++; JAVORNIK, NOREEN B. MS ++; MAGUIRE, MAUREEN G. PHD ++; HO, ALLEN C. MD +; THE CNVPT RESEARCH GROUP
23(3):307-314, June 2003.
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Purpose: To identify risk factors for the development of choroidal neovascularization (CNV) and vision loss in the Fellow Eye Study of the Choroidal Neovascularization Prevention Trial.
Methods: Retrospective review of 121 patients enrolled in a multicentered, randomized, controlled trial. Patients had neovascular age-related macular degeneration in one eye and more than 10 large drusen in the other eye. Records of patients randomly assigned to laser treatment or observation were reviewed through 4 years of follow-up. Three candidate risk factors for the development of CNV and vision loss were evaluated.
Results: Eyes with hyperfluorescent drusen on fluorescein angiography at 3 minutes appeared to have a decreased risk of CNV. Patchy choroidal filling was seen in 14% of patients. Eyes with patchy choroidal perfusion showed a higher risk of developing CNV that was not statistically significant, and the increased risk was present only in treated eyes. Reticular pseudodrusen were present in only three eyes.
Conclusions: Reticular pseudodrusen were rare. Late drusen fluorescence may protect against the development of CNV.
(C) The Ophthalmic Communications Society, Inc.