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要約 目的:両眼に脈絡膜新生血管が発症した原田病の症例の報告。症例:79歳男性が白内障手術を希望して受診した。32か月前に両眼の視力低下があり,原因不明のぶどう膜炎とされ,1年前に遷延型の原田病と診断された。所見:矯正視力は右0.1,左0.15で,両眼に夕焼け状眼底があった。白内障手術を行い,右0.7,左1.2の視力を得た。その後,右眼に限局性の網膜剝離,左眼に虹彩毛様体炎が生じ,ステロイドで軽快した。術後6か月で視力が低下し,脈絡膜新生血管が両眼に発症した。右眼はトリアムシノロンアセトニドのテノン囊下注入で視力は1.0に改善し,左眼は2回の光線力学療法が奏効した後に再発し,ベバシズマブの硝子体内注入に反応しなかった。結論:脈絡膜新生血管が遷延型の原田病に発症し,1眼では光線力学療法が奏効したが,他眼ではベバシズマブの硝子体内注入が無効であった。
Abstract. Purpose:To report a case of Vogt-Koyanagi-Harada disease(VKH)who developed choroidal neovascularization(CNV)in both eyes. Case:A 79-year-old male presented with gradually failing vision. He had impaired visual acuity in both eyes 32 months before. He had been diagnosed with uveitis then and with protracted VKH one year before. Findings:Corrected visual acuity was 0.1 right and 0.15 left. Both eyes showed sunset glow fundus. Visual acuity improved to 0.7 and 1.2 after cataract surgery. Visual acuity decreased 6 months later due to CNV in both eyes. Visual acuity improved to 1.0 in the right eye after subtenon triamcinolone acetonide. The left responded to photodynamic therapy(PDT)but resulted in visual acuity of 0.06 after intravitreal bevacizumab. Conclusion:This case illustrates that CNV may develop in eyes with protracted VKH and that it may or may not respond to intravitreal bevacizumab or PDT.
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