视网膜母细胞瘤以往称为视网膜神经胶质瘤,是一种恶性肿瘤,多发生在幼儿,出生后最初几年中发病较多,也可在胎儿时期发病、它的发病率约为0.01—0.05％,据文献记载,早期症状的出现时间平均是在出生后第二个月前后,约2/3的病例在3岁以前发病,其余的大多在4—5岁时发病,在10岁以后发病者仅个别病例,发病最晚的1例 Retinoblastoma, formerly known as retinal glioma, is a malignant tumor that occurs mostly in young children. It occurs more frequently in the first few years after birth and can also occur during the fetal period. Its incidence is about 0.01-0.05 %, According to the literature, the average onset time of early symptoms is around the second month after birth, about two-thirds of cases before the age of 3 onset, most of the rest of the 4-5 years old onset, after the age of 10 years of age Only a few individual cases, the latest case of onset in 1 case