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要約 目的:加齢黄斑変性による網膜下血腫と線維性組織の除去に意図的巨大裂孔と硝子体手術が奏効した症例の報告。症例:68歳男性の両眼が加齢黄斑変性と33か月前に診断され,左眼には光線力学療法が2回行われた。矯正視力は右0.1,左0.06で,左眼には胞状網膜剝離と網膜下血腫があった。これに対し硝子体手術を行い,耳側に巨大裂孔を意図的に作製し,網膜を翻転して網膜下の血腫と線維組織を除去した。黄斑下に光線力学療法によると思われる巨大な瘢痕組織があり,網膜色素上皮と癒着していた。網膜を復位させ,シリコーンオイルを硝子体腔に注入した。以後6か月間の経過は良好で,0.04の視力を得ている。結論:加齢黄斑変性に対する光線力学療法では,線維組織が網膜色素上皮と強固に癒着していることがある。これに対し,巨大裂孔の作製と網膜下手術が有用である。
Abstract. Purpose:To report a case of age-related macular degeneration treated by vitrectomy and artificial giant retinal tear to remove subretinal hematoma and fibrotic mass. Case:A 61-year-old male had been diagnosed with bilateral age-related macular degeneration 33 months before. His left eye received two sessions of photodynamic therapy. His corrected visual acuity was 0.1 right and 0.06 left. The left eye showed subretinal hematoma with bullous retinal detachment. He received vitrectomy and artificial giant retinal tear to remove the hematoma and fibrotic mass that apparently had formed by photodynamic therapy and that showed firm adhesion to the retinal pigment epithelium(RPE). He has been doing well for 6 months until present with visual acuity of 0.04. Conclusion:This case illustrates that firm adhesion may form between fibrotic mass and RPE following photodynamic therapy for age-related macular degeneration. Vitrectomy and artificial giant tear may be useful for this condition.
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