先天性鼻泪管阻塞是由于鼻泪管远端一薄层粘膜(Ｈａｓｎｅｒ膜)未穿孔引起。据文献报告足月儿发病率6%以上[1],早产儿可高达11%[2]。90%以上先天性鼻泪管阻塞可在1岁以前自然穿孔或经泪囊按摩、泪道冲洗治愈[3,4]。如果先天性鼻泪管阻塞持续存在,则需要进行手术解除阻塞,恢复导 Congenital nasolacrimal duct obstruction due to the nasolacrimal duct distal a thin layer of mucosa (Hasner film) is not caused by perforating. According to the literature, the incidence of term infants is more than 6% [1], preterm infants can be as high as 11% [2]. More than 90% of congenital nasolacrimal duct obstruction can be natural perforation before 1 year or by lacrimal sac massage, lacrimal duct irrigation cured [3,4]. If congenital nasolacrimal duct obstruction persists, you need surgery to unblock, restore guide