網膜中心動脈閉塞症の臨床的検討

Review of clinical features of central retinal artery occlusion

要約　目的：網膜中心動脈閉塞症の臨床像の報告。対象：網膜中心動脈閉塞症の自験例41症例を検索した。1か月～20年（平均40か月）の経過を追った。結果：男22例，女19例で，年齢は30～87歳（平均68歳）であった。34例（83％）が60歳以上で，27例が右眼，14例が左眼に発症した。高血圧が26例，糖尿病が9例，心疾患が9例にあった。初診時視力は全例が0.1以下であり，24例（59％）が指数弁以下であった。最終視力は7例（17％）が0.5～1.2で，19例（46％）が指数弁以下であった。視力が0.5以上に回復した7例は，平均年齢が55歳で，心疾患または脳梗塞の既往がなかった。70歳以上で発症した19例では，最終視力が15例（79％）で指数弁以下であった。結論：網膜中心動脈閉塞症の症例では，高年齢で全身疾患があると，視力転帰が不良であった。

Abstract.　Purpose：To report clinical features of central retinal artery occlusion（CRAO）. Cases：This retrospective study was made on a consecutive series of 41 cases of CRAO. Cases were followed up for one month to 20 years,average 40 months. Results：The series comprised 22 males and 19 females. The age ranged from 30 to 87 years,average 68 years. Thirty-four cases（83％）were aged 60 years or older. All were unilaterally affected. The right eye was affected in 27 cases and the left in 14 cases. Systemic hypertension was present in 26 cases,diabetes mellitus in 9 cases,and heart disease in 9 cases. Initial visual acuity was 0.1 or less in all the cases and was counting fingers or less in 24 cases（59％）. Final visual acuity was between 0.5 and 1.2 in 7 cases（17％）. Age of the 7 cases averaged 55 years. They were free of heart disease or ischemic cerebral diseases. Final visual acuity was counting fingers or less in 19 cases（46％）. Final visual acuity was counting fingers or less in 15 out of 19 cases（79％）who were aged 70 years or over. Conclusion：Visual outcome of CRAO was poor in patients in advanced age and in those with systemic diseases.