AIM: To ameliorate the techniques and instruments forlacrimal duct obstruction in order to learn easily and achieve better surgical effects. METHODS: Group A: 90 eyes with lacrimal duct obstruction were treated with the ameliorated annular silicone stent intubation; Group B: 80 eyes were treated with the classical annular stent intubation.Follow up in 2 years after operation, comparing the rate of cure and efficiency between the two groups. RESULTS:After a two-year follow-up, in group A, 80 (89%) eyes were cured, 7 eyes (7.8%) turned better and 3 eyes failed to respond, the total effective rate was 97%;in group B, 60 ( 75%) eyes were cured, 9 ( 11%) turned better and 11 failed to respond, the total effective rate was 86%.Differences in cure rate (χ2=5.62, P<0.05) and total effective rate (χ2=4.78, P<0.05) between two groups had statistical significance. CONCLUSION: The ameliorated means is simple and effective in treatment oflacrimal canaliculi occlusion, it is worth of spreading.%目的：对泪道环形硅胶支架植入的手术方法和器械进行了改进，使手术过程简单易学，治疗效果良好。 方法：A组：泪道阻塞90眼，用Nd：YAG激光疏通泪道后，采用改良的环形硅胶支架植入术治疗；B组：泪道阻塞80眼，用Nd：YAG激光疏通泪道后，采用经典的环形硅胶支架植入术治疗。术后均随访2a，比较两组的治愈率及有效率。 结果：随访2a，A组治愈80眼，治愈率为89％，好转7眼，好转率为8％，总有效率为97％，无效3眼；B组治愈60眼，治愈率为75％，好转9眼，好转率为11％，总有效率为86％，无效11眼。两组治愈率之间比较，差异有统计学意义（χ2＝5．62，P＜0．05）；两组总有效率比较，差异有统计学意义（χ2＝4．78，P＜0．05）。 结论：改进的硅胶支架植入方法治疗泪道阻塞效果更佳，值得推广。
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