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1974年7月より1979年6月までの5年間に当院において施行した網膜剥離手術例173例192眼について裂隙のtear型とhole型とを比較しつつ統計的処理を行った。その結果は下記のごとくである。
(1) tear型とhole型との年齢分布には著しい差がある。つまりtear型では,ほぼ90%が40歳以上に集中する。
(2)裂隙がtearでは上耳側に多く,holeでは耳側に均等にある。
(3)復位率はtear型88%,hole型90%であった。
以上tear型とhole型を区別して網膜剥離患者の統計的処理をしてきたが,今後,裂隙成因を考える際の下地としていきたい。
Statistical evaluation was made on a consecutive series of 198 eyes (173 cases) with retinal detach-ment during a 5-year-period ending June 1979. Particular attention was paid to the incidence of type of retinal breaks as correlated with age.
Retinal tears occurred in 41% and holes in 38% of the affected eyes. Holes were more prevalent among younger subjects of less than 40 years of age, while 90% of cases with retinal tears were in the age group of over 40 years. Retinal tears were most frequent in the superotemporal quandrant. Retinal holes were usually located in the supero- as well as in the inferotemporal quadrant.
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