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要約 目的:黄斑浮腫により網膜剝離術後のバックル感染が発見された症例を報告する。症例:74歳の男性が4日前からの左眼痛で受診した。6年前に網膜剝離手術を受けていた。矯正視力は右0.7,左0.6であった。所見:格別の病的所見がなく,ドライアイとして点眼による治療を行った。7か月後に左眼視力が0.2に低下した。3か月後にさらに視力が低下し,蛍光眼底造影で黄斑浮腫に相当する所見が得られた。眼球の強い下転時に球結膜の充血と眼脂があり,バックルが露出していた。バックルの除去と抗菌薬点眼などで視力が0.6に改善した。眼脂からCorynebacterium属の菌が分離された。結果:愁訴が軽微であっても,バックルによる網膜剝離手術の既往があれば,感染の可能性を疑うべきである。
Abstract. Purpose:To report a case who showed macular edema as the initial clinical sign of infected scleral buckle for retinal detachment in the past. Case:A 74-year-old male presented with pain in his left eye as the chief complaint. He had received surgery for retinal detachment 6 years before. Findings:His corrected visual acuity was 0.7 right and 0.6 left. He was free of conspicuous pathological findings and was treated under tentative diagnosis of dry eye. His left visual acuity decreased to 0.2 7 months later and to 0.1 another 3 months later. Fluorescein angiography showed findings compatible with macular edema. During attempted subtenon injection of corticosteroid, marked hyperemia with discharge was found when the left eye was maximally turned downward. Buckling material was exposed on the eyeglobe. Removal of buckle and topical antibiotic therapy was followed by improved visual acuity to 0.6. Corynebacterium sp. was isolated from the discharge. Conclusion:Infection of implanted buckling material is a possibility when a patient with past history of retinal detachment surgery complains of ocular pain or impaired visual acuity.
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