特発性黄斑上膜が経過中に自然剝離した小児の1例

Spontaneous separation of idiopathic epiretinal membrane in a child

要約　目的：特発性黄斑上膜が自然剝離した小児例の報告。症例：6歳9か月の女児が学校健診で左眼視力低下を指摘されて受診した。矯正視力は右1.2，左0.1で，左眼黄斑部に線維性の増殖組織があった。光干渉断層計（OCT）でこれに相当する網膜の外顆粒層にびまん性の肥厚があった。梅毒とトキソプラズマを含む諸検査は陰性であった。初診から1年後に黄斑上膜が自然剝離し，OCTで網膜厚が減少していた。屈折矯正と健眼遮蔽を行い，8歳1か月のとき0.15の左眼視力が得られた。結論：特発性黄斑上膜は自然剝離することがあるが，本症例はいままで報告されたなかでは最年少である。

Abstract.　Purpose：To report spontaneous separation of idiopathic epiretinal membrane in a 6-year-old child. Case：A girl was found to have impaired visual acuity at school at the age of 6 years 9 months. Her past and family history was inconspicuous. Findings：Corrected visual acuity was 1.2 right and 0.1 left. The left eye showed a fibrous membrane in the macular area. Optical coherence tomography（OCT）showed thickening in the outer nuclear layer in the area of the membrane. Laboratory studies,including syphilis and toxoplasmosis,gave negative results. The epiretinal membrane started to be spontaneously peeled off. OCT showed decreased retinal thickness. She was treated by correction of refraction and occlusion of the right eye. Her corrected visual acuity improved to 0.15 at the age of 8 years one month. Conclusion：To our best knowledge,the present case is the youngest in the reported cases of spontaneous separation of idiopathic epiretinal membrane.