目的：探讨泪道硅胶引流管留置时间对慢性泪囊炎患者疗效及视力的影响。

方法：回顾性分析2013-01/2016-12在我院行泪道硅胶引流管植入术治疗的慢性泪囊炎患者92例110眼的临床资料，根据泪道硅胶引流管留置时间分为留置6wk组(42例50眼)和留置12wk组(50例60眼)。比较两组临床疗效、术后视力、溢泪症状、并发症及复发情况。

结果：拔管当天，留置6wk组有效率较留置12wk组明显更高，差异具有统计学意义(P<0.05)； 拔管后3mo，留置6wk组视力、溢泪症状发生率与留置12wk组相比，差异均无统计学意义(P>0.05)； 拔管后3mo，留置6wk组并发症发生率为14.0%(7/50)，明显低于留置12wk组38.3%(23/60)，差异具有统计学意义(P<0.05)； 留置6wk组复发率为2.0%(1/50)，明显低于留置12wk组18.3%(11/60)，差异具有统计学意义(P<0.05)。

结论：泪道硅胶引流管留置6wk与12wk对治疗慢性泪囊炎患者的临床疗效较为接近，对患者视力影响亦相差不大，但随着泪道硅胶引流管放置时间的延长，泪道冲洗通畅率降低，拔管难度、并发症及复发率增加，临床应根据患者具体情况尽可能缩短泪道硅胶引流管留置时间。

METHODS: The clinical data of 92 patients(110 eyes)with chronic dacryocystitis treated with lacrimal drainage tube in our hospital from January 2013 to December 2016 were retrospectively analyzed. According to the indwelling time, the patients were divided into 6wk group(42 patients 50 eyes)and 12wk group(50 patients 60 eyes). Comparison of two groups on clinical efficacy, vision, overflow symptoms, complications and recurrence was taken.

RESULTS: The effective rate was significantly higher in the 6wk group than in the 12wk group(P<0.05). The visual acuity and incidence of epilepsy symptoms at 3mo after extubation was not signifcantly different(P<0.05). The incidence of complication was 14.0%(7/50)at 3mo after extubation in 6wk group and significantly lower than that in the 12wk group which was 38.3%(23/60, P<0.05). The recurrence rate was 2.0%(1/50)in the 6wk group, which was significantly lower than that in the 12wk group(18.3%, 11/60; P<0.05).

CONCLUSION: The clinical efficacy of lacrimal silicone drainage tube for 6wk and 12wk is similar to patients with chronic dacryocystitis. There is also little difference in the visual acuity of patients with dacryocystitis, but with the prolongation of the lacrimal duct drainage tube, rinse patency rate, increase the difficulty of extubation, complications and recurrence rate, the clinical situation should be based on the patient as much as possible to shorten the lacrimal duct silicone drainage tube retention time.