白内障术后残余散光成因及制作散光矫正型白内障手术切口的影响因素

The causes of residual astigmatism after cataract surgery and the influence factors of making astigmatism corrected cataract incision

白内障术后残余散光的形成主要受术前角膜散光及术源性散光影响。设计并制作白内障手术切口是控制白内障术后残余散光的主要方式之一。该方法受到切口大小(宽度)、切口长度与深度、切口位置、切口结构以及切口愈合情况等多方面因素的影响,手工制作切口矫正效果有限。使用飞秒激光辅助制作切口和松解角膜更加稳定有效,有一定临床应用前景。

The formation of residual astigmatism after cataract surgery is mainly affected by preoperative corneal astigmatism and surgical induced astigmatism.Designing and making incision is one of the main ways to control residual astigmatism after cataract surgery.This method is affected by many factors,such as incision size(width),incision length and depth,incision position,incision structure,and incision healing.The effect of manual incision correction is limited.Femtosecond laserassisted incision making and corneal relaxing are more stable,effective,and clinically applicable.