摘要目的：对比改良型外径路和鼻内镜下泪囊鼻腔吻合术对慢性泪囊炎术后复发患者的疗效。方法术后复发的慢性泪囊炎18例（18眼）随机分成两组；A组行外径路泪囊鼻腔吻合术，B组行鼻内镜下泪囊鼻腔吻合术。术后随访6个月。结果 A组8眼中治愈6眼、好转1眼，无效1眼。总体有效率87．50％；B组10眼中治愈9眼、好转1眼，总体有效率100％。两组差异具有统计学意义（χ2＝7．8030，P＝0．0019）。结论慢性泪囊炎术后复发患者，鼻内镜下泪囊鼻腔吻合术为更适合的手术方式，术前术后需要眼科及耳鼻喉科医师的跨学科合作。

abstractsObjective To compare the effect of improved exterior route dacryocystorhinostomy and nasal endoscopic dacryocystorhinostomy for postoperatively recurrent chronic dacryocystitis .Methods Eighteen eyes of 18 cases with postoperative recurrence of chronic dacryocystitis were randomly divided into two groups.8 eyes of group A was treated with improved dacryocystorhinostomy , and 10 eyes of group B was treated with improved nasal endoscopic dacryocystorhinostomy .All patients were followed up for 6 months. Results In group A, 6 eyes were cured, 1 eyes was improved and 1 eye was noneffective; the total therapeutic effective rate was 87.5%.In group B, 9 eyes were cured, 1 eyes was improved and none was noneffective;the total treatment effective rate was 100%.The difference between two groups was statistically significant(χ2 =7.8030,P=0.0019).Conclusion Nasal endoscopic dacryocystorhinostomy is suitable for postoperative recurrence chronic dacryocystitis .Interdisciplinary cooperation between ophthalmologist and rhinologist is required .