方法：选取2010-03/2014-12收治的外伤性泪小管断裂患者52例52眼，采用显微镜下寻找泪小管断端并应用环形置管行泪小管吻合手术，术后2～3mo拔出留置的环形管，随访3～12mo的效果观察。

结果：所有患者中47例治愈，3例好转，2例未愈，未愈患者再经泪道激光治疗治愈。

结论：在显微镜下应用环形泪道置管治疗泪小管断裂的方法简便，疗效可靠，且环形管留置期间不影响患者眼部外形和正常工作，减少了眼睑畸形的发生率，是一种好的治疗方法。

METHODS:In 52 cases(52 eyes)with traumatic canaliculi laceration from March 2010 to December 2014, microscopy was used to find the broken end of lacrimal canalicular and annular-intubation implantation was performed during anastomosis. At 2～3mo after the surgeries, annular tubes were pulled out and patients were followed up for 3～12mo.

RESULTS:In all the 52 cases, 47 cases were cured, 3 cases were improved, and 2 cases were not healed. The 2 not-healed patients were cured after treated by laser.

CONCLUSION:The application of the annular-intubation for canaliculi laceration under the microscope is simple and the curative effect is reliable, besides, the the patients' appearance and normal work were not affected when the annular-tube was reserved. And it can reduce the incidence of eyelid deformity. Generally, it's a good methord for canaliculi laceration.