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(1)糖尿病性網膜症25例,静脈血栓症22例,Eales病3例の計50例を対像とし,硝子体手術前に超音波,ERG検査を実施し,術後視力との相関をみた。
(2)超音波にて完全硝子体剥離で,かつERGにてnomalのものは,術後平均視力0.95(0.6〜1.5)と良好で,超音波にて不完全硝子体剥離で,かつERGにてflatのものは術後視力は不良であった。
(3)術前の超音波,ERG検査の組み合わせ分類は,術後視力とよく相関した(P<0.01)。すなわち術前の超音波,ERG検査の組み合わせにより,術後の視力予後推定の可能性が示唆された。
We evaluated the prognostic value of electro-retinogram (ERG) and ultrasonography prior to vitreous surgery in 50 cases with opaque vitreous due to diabetic retinopathy (25), retinal vein oc-clusion (22) and Eales' disease (3). Ultrasonogra-phic features were classified into 3 types : V-1 (complete posterior vitreous detachment), V-2 (posterior vitreous detachment with retinal adhe-sion) and V-3 (diffuse vitreous opacity). The ERG features were classified into 3 types : N (normal), M (subnormal) and F (flat). The visual acuity following viteous surgery was correlated with the above features.
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