白内障术中联合矫正角膜散光的研究进展

Research progress of correcting corneal astigmatism in cataract surgery

散光矫正是屈光性白内障手术的必然要求,目前白内障术中联合矫正角膜散光的方法主要有角膜切开和散光型人工晶状体(ToricIOL)植入。无论是手术刀还是飞秒激光角膜切开,其矫正散光的效果都与切口的位置、构型、形状、长度和深度、切口与视轴距离等有关。ToricIOL的样式和材料会影响其在囊袋内的旋转稳定性,从而影响其矫正散光的效果。此外,术前ToricIOL的计算及角膜散光轴向的漂移亦会影响其矫正效果。本文就白内障术中联合矫正角膜散光的研究进行综述,以供眼科医师在临床工作中参考。

Correction of astigmatism is an important part of refractive cataract surgery.Currently,methods of combined corneal astigmatism correction in cataract surgery mainly include keratotomy and Toric intraocular lens (IOL) implantation.Whether it is a scalpel or femtosecond laser keratotomy,the effects of astigmatism correction is related to the position,shape,length and depth of the incisions,configuration,and distance between incisions and optic axis.Moreover,the pattern and material of Toric IOL can affect its rotation stability and effects of astigmatism correction.This article reviewed recent progress of correcting corneal astigmatism in cataract surgery,which provided reference for ophthalmologists in clinical.