方法：对45例52眼慢性泪囊炎患者行逆行泪道置管术，术中在鼻内窥镜显示器引导下查找探针头部并取出金属导丝，术后2～3mo拔管，观察术后疗效。

结果：所有患者手术顺利进行，术中未见明显鼻黏膜出血等并发症，拔管后随访3～5mo，治愈41眼(79%)，好转4眼(8%)，无效7眼(13%)。有效率87%。

结论：在鼻内窥镜引导下行逆行泪道置管术可缩短手术时间，减少鼻黏膜损伤出血，使手术顺利进行。

METHODS: Totally 45 patients(52 eyes)with chronic dacryocystitis in this study received retrograde lacrimal intubation by nasal endoscopic, and the tube was removed after placing 2-3 months. The efficacy was observed after surgery.

RESULTS: All operations on the patients were conducted successfully, and no serious complications during and after surgery. 41 eyes(79%)were cured, 4 eyes(8%)were improved and 7 eyes(13%)had no effective improvement. The effective rate was 87%.

CONCLUSION: Retrograde lacrimal intubation on treatment of chronic dacryocystitis with nasal endoscopic can make the surgery safer, easier and less injury.