術後1年以上黄斑部網膜下液遷延にもかかわらず視力良好な裂孔原性網膜剝離の1例

A case of rhegmatoenous retinal detachment with good visual acuity after persistence of submacular fluid for one year

要約　目的：裂孔原性網膜剝離への術後，19か月で黄斑下の網膜下液が吸収され，良好な最終視力を得た症例の報告。症例：32歳男性が右眼の下方視野の欠損で受診した。左眼に網膜剝離手術の既往がある。所見：矯正視力は右1.2，左1.5で，右眼の黄斑下方に網膜剝離があった。右眼の2時から9時にかけてシリコーンスポンジを縫着し，強膜内陥術を行った。網膜下液は排液しなかった。網膜下液は，術直後は残存し，14か月後に減少しはじめ，19か月後に消失した。この期間中，視力は1.0～1.5の間にあった。術後28か月まで網膜剝離の再発はない。結論：裂孔原性網膜剝離への術後，黄斑部に網膜下液が長期間残存しても，最終視力が良好なことがある。

Abstract.　Purpose：To report a case of rhegmatogenous retinal detachment resulting in good visual acuity in spite of persistent presence of submacular fluid. Case：A 32-year-old male presented with impaired visual field of recent onset. He had a history of surgery for retinal detachment in the left eye. Findings：Corrected visual acuity was 1.2 right and 1.5 left. The right eye showed retinal detachment in the lower hemisphere. Results：The right eye received scleral encircling and suturing of silicone sponge from 2 to 9 o'clock. The subretinal fluid was not drained. The subretinal fluid persisted for over one year, started to resolve 14 months and disappeared 19 months after surgery. Visual acuity remained 1.0 or over throughout. There has been no recurrence of retinal detachment for 28 months after surgery until present. Conclusion：This case illustrates that visual acuity may not be affected in spite of persistence of subretinal fluid after surgery for retinal detachment.