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可囊切除术是白内障囊外摘除联合后房型人工晶体植入手术中最有决定性的步骤之一。本文分析在同等手术条件下开信封式囊切开与开罐式囊切除的两种不同方法的临床效果。１１６例病人分为两组，每组５８例。平均随访３．８个月（１－２４个月）。结果表明两组的术后视力差异无显著性（Ｐ＞０．０５）。但在开信封式组中的虹膜色素脱落却明显低于开罐式组（Ｐ＜０．０１）。
Extinction is one of the most decisive steps in extracapsular cataract extraction combined with posterior chamber intraocular lens implantation. This article analyzes the clinical effects of two different methods of open-capsule closure and open-capsule excision under the same surgical conditions. 116 patients were divided into two groups, 58 cases in each group. The average follow-up 3.8 months (1-24 months). The results showed that there was no significant difference in postoperative visual acuity between the two groups (P> 0.05). However, iris pigment shedding was significantly lower in open packs than in open cans (P <0.01).