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保存的療法を施行され,満5年以上経過した網膜芽細胞腫患児30例(32眼)の視機能を検討し,次の結果を得た。
(1)視力1.0以上が7眼(22%),0.9〜0.3が10眼(31%),0.2〜0.1が6眼(19%),そして0.1未満が9眼(28%)であった。
(2)保存療法眼の視力予後は腫瘍の大きさと,腫瘍が黄斑を含むか否かによって大きな影響を受けた。
(3)放射線の照射量が4,500 rads以上の例では,視力は全て0.1未満となり,また全例にERGの異常所見と白内障の合併がみられた。
(4)屈折は23眼中,13眼(57%)が遠視性乱視で最も多かった。
We evaluated the visual outcome of 32 eyes (30 cases) who had been treated for retinoblastoma by conservative therapeutic means including radia-tion, cryoapplication, photocoagulation and cyto-static agents with a minimum follow-up of 5 years. Out of a larger series of 41 eyes (39 cases) thus trea-ted by us during 8-year period (1969-1976), enu-cleation had to be performed in 6 eyes (6 cases) and death resulted in 3 cases.
Visual acuity of 1.0 or more was retained in 7 eyes (22%). Ten eyes (31%) retained visual acuity of 0.9-0.3, 6 eyes (19%) retained 0.2-0.1 and the remaining 9 eyes (28%) had visual acuity of less than 0.1.
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