视网膜劈裂症是大家熟悉的一种眼底病。在临床上还有一类和其病理过程基本相同、临床表现略有区别且并不少见的视网膜囊肿。视网膜囊肿一词在1963年由Pischel提出,他将其分为四型:(1)小囊肿——大小在1毫米左右;(2)中等或孤立囊肿——4～8PD大小;(3)巨大囊肿——8～10PD大小;(4)大的囊肿(retinoschisis)——这型囊肿比(3)大,至少占眼底的25％。 Keith(1966)根据144只眼球切片检查结果把网膜囊肿分为先天性(包括先天玻璃体血管纱膜)和后天性两大类。Hagler和North(1967)重新给Pischel分类中的中 Retinal splitting disease is a familiar fundus disease. There is a class of clinical and its pathological process is basically the same, a slight difference in clinical manifestations and is not uncommon retinal cysts. The term retinal cyst was proposed by Pischel in 1963 and he is divided into four types: (1) small cysts - about 1 mm in size; (2) medium or isolated cysts - 4 to 8 PD in size; (3) huge Cyst - 8 ~ 10PD size; (4) large cysts (retinoschisis) - This cyst is larger than (3), accounting for at least 25% of the fundus. Keith (1966) based on 144 eye biopsy results of the omental cysts are divided into congenital (including congenital vitreous membrane) and acquired two categories. Hagler and North (1967) resubmitted to Pischel