Sixty-four eyes of 60 patients with ocular histoplasmosis, and choroidal neovascularization documented by fluorescein angiography, and not treated with photocoagulation, were followed for an average of 29 months. The primary determinant of visual outcome was the proximity of the neovascular membrane to the fovea. Sixty-four percent of eyes with membranes 0.25 disk diameter or greater from the fovea had a final visual acuity of 6 12 ( 20 40) or better, and 71% of such eyes maintained or improved initial visual acuity. All eyes with subfoveal neovascularization had a poor visual result. Other factors related to visual prognosis included initial visual acuity, size of the neovascular membrane, size of sensory retinal detachment, and presence of hemorrhage.
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