方法：采用回顾性分析研究将56例95眼高度近视并发白内障患者分为A、B两组，A组31例55眼植入Bigbag人工晶状体； B组25例40眼植入US人工晶状体。术后3mo测量并比较两组最佳矫正视力(best corrected visual acuity，BCVA)，前房深度，术后并发症的发生情况。

结果：术后3mo，两组的BCVA差异无统计学意义(χ²=0.131，P>O.05)。A组较B组术后前房深度深，差异有统计学意义(P<0.05)。术后3mo，自觉眼前黑影飘动较术前明显增多的患者，A组(5眼，9.1%)少于B组(10眼，25.0%)，差异有统计学意义(P<0.05)。术后3mo，A组(2眼，3.6%)后发性白内障的发生率较B组(3眼，7.5%)少，差异有统计学意义(P<0.05)。

结论：对于高度近视并发白内障患者，Bigbag晶状体与US晶状体相比，在减少并发症、减少后发性白内障发生方面具有明显优势。

METHODS: A total of 56 cases were studied retrospectively. Patients in group A(31 cases with 55 eyes)were implanted in Bigbag intraocular lens and patients in group B(25 cases with 40 eyes)were implanted in US intraocular lens. Best corrected visual acuity(BCVA), anterior chamber depth, and post operative complications were measured and compared 3 months after surgery.

RESULTS: There was no significantly difference between group A and B in BCVA 3 months after surgery. Anterior depth of group A was deeper than group B, which was statistically significant difference(P<0.05). Three month after surgery, patients in group A(5 eyes, 9.1%)who felt more floating shadows were less than patients in group B(10 eyes, 25.0%), which was statistically significant difference(P<0.05); The incidence of posterior capsule opacification(PCO)in group A(2 eyes, 3.6%)is less than patients in group B(3 eyes, 7.5%), which was statistically significant difference(P<0.05).

CONCLUSION: Bigbag has obvious advantages such as reducing complications and the incidence of PCO than US for patients of high myopia with cataract.