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水晶体嚢外摘出(ECCE)術後の後房レンズ(PC-IOL)二次移植症例11例13眼について検討した。平均年齢は67.7歳で,初回手術からの期間は平均2年3か月であった。二次移植の理由は,コンタクトレンズ不適応(55%)が,最も多く,術後合併症はECCE+PC-IOL症例よりも少なかった。術後4日目に視力0.8に達する症例は69%(9/11)と高く,角膜内皮細胞密度の減少率もECCE+PC-IOL症例に比べて少なかった(4.7%)。PC-IOL二次移植術は,少なくないECCE後片眼人工無水晶体眼のコンタクトレンズ不適応例について有意義な方法であると考えられる。
We evaluated 13 eyes in 11 patients who under-went secondary implantation of posterior chamber intraocular lens after prior extracapsular cataract extraction. The age of patients averaged 67.7 years. The interval between the two surgeries averaged 27 months. Contact lens intolerance was the most common cause of secondary implantation and ac-counted for 55% of all cases. The incidence of complications during and after surgery was lower than simultaneous extraction of cataract and intraocular lens implantation. Visual acuity recovered to 20/25 or better 4 days after surgery in 9 out of the 13 eyes (69%). The corneal endothelial cell density decreased by 4.7% in the present group as compared to 8.2% in eyes with simultaneous cataract extraction and intraocular lens implanta-tion.
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