Indocyanine green angiographic features of idiopathic choroidal neovascularization Tomohiro Iida 1 , Norikazu Hagimura 1 , Taku Satoh 1 , Katsuya Sutoh 1 1Department of Ophthalmology, Gunma University School of Medicine pp.965-970
Published Date 1997/5/15
DOI https://doi.org/10.11477/mf.1410908782
  • Abstract
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We studied 16 eyes of idiopathic choroidal neovascularization (CNV) by indocyanine green (ICG) angiography. The CNV was surrounded by a dark rim in 14 eyes. The dark rim became more pronounced after the CNV became inactive. In late-phase angiogram, areas of hyperfluorescence were present in 10 eyes. They were located adjacent to CNV in 8 eyes. Dilatation of choroidal veins was present in 3 eyes. These findings seemed to imply that the presence of dark rim around the CNV is one of the characteristic features of this disease entity. Presence of hyperpermeability or dilatated choroidal veins appeared to be involved in the pathogenesis of CNV.

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