后发性白内障的预防

Prevention of posterior capsular opacification after cataract surgery

后发性白内障(PCO)是白内障术后最常见的并发症。多年来,从人工晶状体(IOL)材料选择、IOL设计,或手术方式选择如前囊膜抛光、后囊膜切开联合前段玻璃体切除术、植入囊袋张力环(CTR)、植入囊膜接触抑制环(CAPR)等方面预防PCO研究报道较多。但多数预防方法临床效果存在争议,其作用机制尚未明确,长期效果尚不确定。

Posterior capsular opacification （PC0） is the most common complication after cataract operation. Recently, there are many researches interested in how to prevent PCO, such as the developments in the intraocular lens materials and designs, surgical methods such as anterior capsule polishing, posterior capsulorhexis with anterior vitrectomy, implanting capsular tension ring （CTR） or capsular adhesion-preventing ring （CAPR）. However, the most of these preventing methods are controversial, the most action mecha- nisms are still unclear, and the long time effects are still uncertain.