慢性泪囊炎是眼科常见病,鼻泪管狭窄、阻塞为此病的直接病因。过去我院一直采用传统的鼻腔泪囊吻合术治疗此病。自1989年3月起,我们采用BD_2型电动孤型空心环钻治疗慢性泪囊炎的鼻泪管阻塞,收到了一定的疗效。现报告如下。临床资料 Chronic dacryocystitis is a common ophthalmology, nasolacrimal duct stenosis, obstruction is the direct cause of this disease. In the past, our hospital has been using the traditional nasal dacryocystorhinostomy for the disease. Since March 1989, we have adopted a type BD_2 electric solitary hollow ring drill to treat nasolacrimal duct obstruction of chronic dacryocystitis and received some curative effect. The report is as follows. clinical information