方法：选取我院2013-01/08患者80例，随机分为对照组、治疗组，检测泪膜破裂时间，并进行症状评分， A组予以玻璃酸钠眼液滴眼1wk，B组予以聚乙二醇眼液治疗1wk，1wk后再次检测泪膜破裂时间及进行症状评分。

结果：泪膜破裂时间(BUT)对照组治疗前为3.87±1.12s，治疗后为4.21±1.06s，比较无统计学意义(P>0.05)，治疗组治疗前3.98±1.04s，治疗后8.98±1.30s，有统计学意义(P<0.05)，对照组和治疗组治疗后差异有统计学意义(P<0.05)； 症状积分对照组治疗前13.71±2.91分，治疗后7.01±3.11分，比较有统计学意义(P<0.05)，治疗组治疗前12.98±2.54分，治疗后3.98±1.94分，比较有统计学意义(P<0.05)，对照组和治疗组治疗后差异有统计学意义(P<0.05)。

结论：聚乙二醇眼液能延长白内障术后干眼症患者的泪膜破裂时间，并可以改善患者主观症状，是治疗干眼症较有效的药物之一。

METHODS: Eighty patients with dry eyes secondary to cataract surgery who were treated in our hospital from January to August 2013 were randomly divided into group A and group B. Group A was treated with sodium hyaluronate eye drops for one week, and Group B was treated with polyethylene glycol eye drops for one week. The break-up time of tear film was measured and the subjective symptoms were graded before and after the treatment.

RESULTS: The tear film break-up time of group A was respectively 3.87±1.12s and 4.21±1.06s before and after the treatment, with no significant difference(P>0.05); it was respectively 3.98±1.04s and 8.98±1.30s with significant difference for group B(P<0.05). The symptom grade of group A was respectively 13.71±2.9 and 7.01±3.11 before and after the treatment with significant difference(P<0.05). It was 12.98±2.54 and 3.98±1.94 with significantly difference for group B(P<0.05). After the treatment, there was a significant difference between group A and group B(P<0.05).

CONCLUSION: Polyethylene glycol eye drops can extend tear film break-up time and improve symptoms of dry eyes. It is an effective drug in treatment of dry eyes after cataract surgery.