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要約 目的:白内障手術後の残余屈折異常に対し,追加型眼内レンズ(IOL)を挿入した1症例の報告。症例:70歳男性が白内障手術を希望して受診した。23年前に両眼に放射状角膜切開術,12年前に両眼にレーザー屈折矯正角膜切除術を受けていた。所見:裸眼視力は右0.5,左0.4で,矯正視力は右0.9,左1.0であった。加齢白内障の診断で,左右眼に超音波乳化吸引術とIOL挿入術を行った。1年後の裸眼視力は右0.5,左0.5で,矯正視力は右1.2,左1.0であった。左眼に+3.0D()cyl-2.0D 65°の屈折異常があった。患者の希望により,左眼に追加型単焦点IOLを挿入した。6か月後の左眼の裸眼視力は0.63,矯正視力は1.0であり,合併症はない。結論:追加型IOLの挿入は,白内障手術後の残余屈折異常に対する治療の,1つの選択肢である。
Abstract. Purpose:To report a case who received implantation of piggyback intraocular lens(IOL)for residual refractive error after cataract surgery. Case:A 70-year-old man presented to our clinic complaining of decreased visual acuity in his both eyes. Both eyes had received radial keratotomy 23 years before and photorefractive keratectomy 12 years before. Findings:Visual acuity was 0.5 right and 0.4 left without correction, and 0.9 right and 1.0 left with correction. Under diagnosis of age-related cataract, both eyes received phacoemulsification-aspiration with IOL implantation. Visual acuity was 0.5 in either eye without correction and 1.2 right and 1.0 left with correction one year later. The left eye had refraction of +3.00D()cyl-2.00D 65°. By request of the patient, monofocal piggyback IOL was implanted into the left eye. Six months after surgery, left visual acuity was 0.63 without and 1.0 with correction. There has been no complication throughout. Conclusion:Implantation of piggyback IOL can be a therapeutic option for residual refractive error after cataract surgery.
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