自 194 0年 ,Rotth用新鲜的羊胎膜 ,即包含有绒毛膜和羊膜 ,移植到眼表面治疗睑球粘连的患者以来[1] ,随着对羊膜研究的深入 ,羊膜移植已成为眼科界的研究热门。羊膜是胎盘膜的内层 ,是由滋养细胞层分化而来 ,薄而半透明状。正常羊膜无血管 ,厚度为 0 0 2～ 0 5mm。根据Bourn Since 1960, Rotth has used a fresh sheep’s fetal membrane, which contains chorion and amniotic membrane, has been transplanted to the ocular surface for the treatment of patients with symblepharon [1]. With the deepening of amniotic research, amniotic membrane transplantation has become the ophthalmic community Popular research. Amniotic membrane is the inner membrane of the placenta, is derived from the trophoblastic differentiation, thin and translucent. Normal amniotic avascular, the thickness of 0 0 2 ~ 0 5mm. According to Bourn