目的：探讨改良鼻内镜下泪囊鼻腔吻合术治疗慢性泪囊炎的有效性和安全性。

方法：回顾性分析。选取2015-03/2019-03我院慢性泪囊炎患者160例166眼，根据手术方式分为两组，常规鼻内镜下泪囊鼻腔吻合术组80例82眼，改良式鼻内镜下泪囊鼻腔吻合术组80例84眼，比较两组患者末次随访时治愈率、好转率、总有效率及患者满意度。

结果：两组患者末次随访时的治愈率、好转率、总有效率和满意度分别为，常规手术组：75.6%、17.1%、92.7% 和73.8%，改良式手术组：90.5%、5.9%、96.4% 和 92.5%，两组患者治愈率、好转率、总有效率和满意度比较，差异均有统计学意义(P<0.05)。两组患者在术中及术后均未发生严重并发症。

结论：改良式鼻内镜下泪囊鼻腔吻合术治疗慢性泪囊炎安全有效。

METHODS: Eighty cases of chronic dacryocystitis with two different surgical methods were randomly selected and divided into common endoscopic dacryocystorhinostomy(80 cases with 82 eyes)and improved endoscopic dacryocystorhinostomy(80 cases with 84 eyes)according to operation. Compared to observe cure rate, improvement rate, total effective rate and patient satisfaction of two kinds of surgery by the last follow-up.

RESULTS: The cure rate, improvement rate, total effective rate and satisfaction rate were respectively 75.6%, 17.1%, 92.7% and 73.8% for Group A, 90.5%, 5.9%, 96.4% and 92.5% for Group B. Differences between the cure rate, improvement rate and total effective rate between two groups had statistical significance(P<0.05).

CONCLUSION: The cure rate and improve symptom of improved endoscopic dacryocystorhinostomy is superior to the common endoscopic dacryocystorhinostomy, safe and effective.