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Retina. 2003 Jun;23(3):307-14.

Risk factors for choroidal neovascularization and vision loss in the fellow eye study of CNVPT.

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1
Associated Retinal Consultants, Royal Oak, Michigan, USA.

Abstract

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.

PMID:
12824829
[Indexed for MEDLINE]
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