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要約 目的:脆弱なチン小帯がある3眼に,水晶体囊拡張リング(CTR)を併用してトーリック眼内レンズ(IOL)挿入を行った報告。
症例:症例は57歳女性,68歳男性,72歳男性で,それぞれ浅前房,スティーブンス・ジョンソン症候群の既往,水晶体震盪による脆弱なチン小帯があった。1眼には−2.5Dの角膜乱視があり,ZCT300を挿入し,矯正視力は0.5から1.2に改善した。1眼には−1.5Dの乱視があり,SN6AT3を挿入した。術後の角膜上皮障害が強く,視力は0.15であった。他の1眼には−2.0Dの乱視があり,SN6AT5を挿入し,矯正視力は0.2から1.0に改善した。これら3眼すべてにCTRを併用した。3眼すべてでIOLの軸ずれはほぼなかった。
結論:脆弱なチン小帯がある3眼にCTRを併用したトーリックIOLの挿入は有効であった。
Abstract Purpose:To report implantation of toric intraocular lens using capsular tension ring in three eyes with weak zonule.
Cases:The present comprised a 57-year-old female, 68-year-old male and 72-year-old male. Weak zonule was present due to shallow anterior chamber, Stevens-Johnson syndrome in the past, and phacodonesis. One eye had corneal astigmatism of −2.5 diopters and received implantation ZCT300. Corrected visual acuity improved from preoperative 0.5 to 1.2. Another eye had astigmatism of −1.5 diopters and was inserted with SN6AT3. Visual acuity remained at 0.15 due to impaired corneal epithelium. The third eye had astigmatism of −2.0 diopters and was implanted with SN6AT5. Visual acuity improved from 0.2 to 1.0. Capsular tension ring was used in all the 3 eyes during surgery. Postoperative deviation of axis of astigmatism was less than 2 degrees in all the 3 eyes.
Conclusion:Implantation of toric intraocular lens using capsular tension ring was useful in eyes with weak zonule. The findings show that toric intraocular lens is indicated to correct corneal astigmatism.
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