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Case Reports
. 1995 May;102(5):782-9.
doi: 10.1016/s0161-6420(95)30968-2.

The Natural History of Idiopathic Subfoveal Choroidal Neovascularization

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Case Reports

The Natural History of Idiopathic Subfoveal Choroidal Neovascularization

A C Ho et al. Ophthalmology. .

Abstract

Purpose: To study the long-term natural history of idiopathic subfoveal choroidal neovascularization (CNV) in young patients.

Methods: A retrospective survey of 19 consecutive patients with idiopathic subfoveal CNV diagnosed in an urban eye hospital and a single practice.

Results: Twenty-three (26%) of 87 consecutive patients with idiopathic CNV demonstrated subfoveal CNV. Nineteen patients with subfoveal involvement were followed for a median of 87 months (range, 5-230 months). On initial examination, the median best-corrected Snellen visual acuity was 20/100 (range, 20/40-counting fingers); at final examination, the median visual acuity was 20/70 (range, 20/20-counting fingers). A total of 95% of patients had stable or significantly improved visual acuity, whereas only 5% had significant visual loss. Size of the CNV was the only variable associated with long-term final visual acuity. Lesions 1 disc area or smaller at the time of initial fluorescein angiography were more likely to be associated with a final visual acuity of 20/60 or better and less likely to be associated with a final visual acuity of 20/200 or worse (P = 0.038) as compared with larger lesions. These results were confirmed with multiple logistic regression analysis (P = 0.027). Fellow eyes remained unaffected during the follow-up period.

Conclusions: The natural history of idiopathic subfoveal CNV is not necessarily associated with a profound loss of vision. Therapies for this type of subfoveal lesion must take into consideration the possibility of a favorable natural course.

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