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利用改进环形撕囊与开罐式截囊方法，施行白内障囊外摘除人工晶体植入术治疗病人２１４例（３２２只眼）。病人随机分二组，按不同截囊方法对术后前房渗出、后囊膜混浊、矫正视力进行了对照视察，经统计学处理，Ｐ＜０．０５，差异非常显著，证明环形撕囊优于开罐式截囊。环形逆划或顺划撕囊不用粘弹剂，以ＢＳＳ液维持前房深度方法可靠，效果良好。
214 patients (322 eyes) underwent extracapsular cataract extraction with intraocular lens implantation through improved capsulotomy and open capsulotomy. Patients were randomly divided into two groups, according to different methods of posterior capsule anterior chamber exudate, posterior capsule opacity, corrected visual acuity were compared with the control, the statistical analysis, P <0.05, the difference was very significant that the annular capsulorhexis Better than open can type capsulotomy. Ring reverse or stroke without capsulorhexis viscoelastic BSS solution to maintain anterior chamber depth and reliable method, the effect is good.