網膜剥離に対する強膜バックリング術前後での眼位変化

Ocular deviation following scleral buckling surgery for retinal detachment

　過去13か月間にバックル縫着術を行った裂孔原性網膜剥離45例について，術前後の眼位と自覚症状を検索した。術前眼位は，正位28例，外斜位8例，外斜視7例，外上斜視2例であった。第1または第2眼位の変化は，術後1か月で51％，6か月で24％にあった。術後1か月には第1眼位での複視が5例にあり，6か月後には全例で消失した。術後の両眼視状態と視力がよい群では，不良群よりも眼位が良好に保たれやすい傾向があった。術前斜視群では，術後の眼位変化率と残存率が高かったが，自覚症状のない症例が多かった。

We evaluated the eye position in 45 cases following scleral buckling surgery for rhegmatogenous retinal detachment during a 13-month period. Preoperatively, the eyes were orthophoric in 28, exophoric in 8, exotropic in 7, and hypero-exotropic in 2 cases. Changes in primary or secondary eye position were pre-sent in 51% of cases 1 month after surgery and in 24% 6 months after surgery. Diplopia in the primary posi-tion was present in 5 cases 1 month after surgery. It disappeared in all the cases 6 months after surgery There was a tendency for better eye position in cases with fair postoperative binocular function and visual acu-ity than those without. Cases with preoperative strabismus showed higher rates in the incidence and persis-tence of abnormal eye position. Most of these cases were free of diplopia.