CASE REPORTS
JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
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Progressive presumed choriocapillaris atrophy after surgery for age-related macular degeneration.

Retina 1998
PURPOSE: The authors sought to evaluate the progression of presumed choriocapillaris atrophy after surgical excision of a subfoveal choroidal neovascular membrane (CNV) in an 80-year-old man with age-related macular degeneration.

METHODS: The CNV was excised using a conventional three-port vitrectomy with subretinal dissection. The excised tissue was studied with light and electron microscopy. Preoperative and serial postoperative fluorescein angiograms (FA) and fundus photographs were obtained to study the dissection bed.

RESULTS: Seven days after surgery, the FA showed hyperfluorescence in the area previously occupied by the CNV. Six weeks after surgery, this area showed retinal pigment epithelium (RPE) depigmentation, atrophy, or both on clinical examination, and the FA showed presumed choriocapillaris nonperfusion. Seven months after surgery, the area of the RPE depigmentation or atrophy and the corresponding area of presumed choriocapillaris nonperfusion had enlarged. The area of depigmentation or atrophy continued to enlarge for 1 year after surgery. Histologically, the excised CNV specimen disclosed RPE cells but no choriocapillaris.

CONCLUSIONS: Presumed choriocapillaris nonperfusion after CNV excision may be due to RPE removal at surgery and may progress postoperatively.

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