ICGA Findings and Clinical Features of Idiopathic Choroidal Neovascularization.

Song, Ki Young; Kim, Ha Kyoung; Kim, Hyung Chan

Original Article

Journal of the Korean Ophthalmological Society 2001;42(10):1408-1414.
Published online October 1, 2001.

ICGA Findings and Clinical Features of Idiopathic Choroidal Neovascularization.

Ki Young Song, Ha Kyoung Kim, Hyung Chan Kim

Department of Ophthalmology, Kangnam Sacred Heart Hospital, Hallym University Medical College, Seoul, Korea.

특발성 맥락막신생혈관의 ICGA 소견 및 임상양상

송기영(Ki Young Song),김하경(Ha Kyoung Kim),김형찬(Hyung Chan Kim)

Abstract

PURPOSE
The purspose of this study was to investigate the ICGA findings and clinical features of idiopathic choroidal neovascularization (CNV) which is one of the important causes of CNV developed under 50 years of age. METHOD: We performed FAG and ICG angiography in 26 eyes (25 patients) which were diagnosed as idiopathic CNV and investigated the visual acuity, associated retinal findings, and treatment modality. RESULTS: The locations of CNV were subfoveal in 11 eyes, juxtafoveal in 11 eyes, extrafoveal in 4 eyes. All CNV were less than 1 disc diameter in size. On ICG angiography, hyperfluorescent neovascular network CNV was visible in early phase in 22 out of 26 eyes. Twelve eyes had dark rim surrouding the CNV, and 10 eyes had focal choroidal vascular dilation near the CNV. Twelve eyes showed obvious choroidal hyperpermeability in late phase, and 3 eyes showed the hypofluorescent dark spot near the CNV. Final visual acuity was improved in 9 eyes, decreased in 4 eyes, and unchanged in 13 eyes. CONCLUSION: Idiopathic CNV was small in size and located mostly in foveal area. ICG angiography showed CNV with various angiographic patterns, and the visual prognosis was relatively good.

Key Words: CNV;dark rim;choroidal hyperpermeability;ICG angiography