OCT of case 2 showed a high reflective signal on inner layer of the retina overlying epiretinal membrane(ERM).And the retina was not smooth owing to the traction of ERM.

• 鉴别诊断包括视网膜前膜，含色素和一些不含色素的眼底隆起病变包括：脉络膜黑色素瘤，脉络膜转移性肿瘤，视网膜母细胞瘤等。