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中心窩下の脈絡膜新生血管膜除去術を16例16眼に行った。加齢黄斑変性症11眼,特発性新生血管黄斑症2眼,近視性新生血管黄斑症3眼である。平均10.3か月の経過観察で,視力改善が6眼,不変6眼,悪化4眼であった。術前のフルオレセインまたはインドシアニングリーン螢光眼底造影での新生血管膜の大きさは,術中で確認した新生血管膜よりも小さかった(p<0.005)。術後のフルオレセイン螢光眼底造影で網膜色素上皮障害が軽度な症例では,高度な症例よりも視力が改善していた(p<0.05)。手術による視力改善は,中心窩下の網膜色素上皮の強い障害なしに新生血管膜を除去できるような症例を選択することが重要であると思われた。
We performed surgical removal of subfoveal choroidal neovascular membrane in 16 eyes of 16 patients. The series comprised age-related macular degeneration 11 eyes, idiopathic 2 eyes and myopic 3 eyes. After an average of 10.3 months after surgery, the visual acuity improved by 2 lines or more in 6 eyes, remained unchanged in 6 eyes and deteriorated in 4 eyes. The size of choroidal neovascular membrane, which was estimated by fluorescein or indocyanine green angiography, was smaller than the size as determined intraoperatively (p<0.005) . After surgery, eyes with lesser impairment of retinal pigment epithelium by fluorescein angiography showed better visual outcome than those with severe impairment (p<0.05) . The finding shows the importance of proper selection of eyes in which surgical removal of subfoveal choroidal neovascular membrane can be performed without severe impairment to the retinal pigment epithelium is expected.
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