大直径环形撕囊近赤道前囊抛光预防后发性白内障

Clinical study of posterior capsular opacification with large diameter continuous circular capsulo-rhexis with polishing near equatorial anterior capsule

目的观察白内障超声乳化吸出术中较大直径连续环形撕囊联合近赤道前囊下抛光对预防后发性白内障的作用。方法对96例（106眼）白内障行超声乳化吸出联合人工晶状体植入术。A组53眼连续环形撕囊直径5．5～6．5mm，常规后囊抛光后用弯注吸针头行近赤道前囊下抛光，植入亲水性丙烯酸酯折叠人工晶状体。B组53眼撕囊直径4．5—5．5mm，不进行前囊抛光，余同A组。观察两组后发性白内障情况。结果随访2年，术后3个月、6个月两组后发性白内障发生率无明显差异、术后1年A组后发性白内障发生率明显低于B组（P〈0．05）。结论较大直径环形撕囊联合近赤道前囊下抛光，能有效降低后发性白内障的发生。

Objective To investigate the influence with large diameter continuous circular capsulo- rhexis with polish near equatorial anterior to posterior capsular opacification. Methods 106 eyes of 96 cases received phacoemulsification with IOL implantation. For 53 eyes of group A,the diameter of continuous cir-cular capsulorhexis was 5.5 to 6.5 mm. To lap near equatorial anterior capsule after polishing posterior cap-sule, For 53 eyes of group B, the diameter of continuous circular capsulorhexis was 4.5 to 5.5mm, polishing posterior capsule only. The consequence of posterior capsular opacification was observed. Results Follow- up 2 years, the rate of posterior capsular opacification of two group was no differences at 3 and 6 months. The rate of posterior capsular opacification of group A was lower than B after 1 year. Conclusion Rate of poste-rior capsular opacification with large diameter continuous circular capsulorhexis with polishing near equatorial anterior capsule was low.