不同类型人工晶状体植入术后倾斜和偏心影响视觉质量的研究现状

Effects of tilt and decentration on visual quality after various intraocular lens implantations

白内障超声乳化吸除后人工晶状体(IOL)植入手术是目前公认有效的白内障治疗方式,现在白内障手术的目标已向获得良好视觉质量的屈光手术转变。IOL术后的偏心和倾斜可以增加高阶像差,降低视觉质量,但不同类型IOL因设计等因素,对术后偏心和倾斜所造成的视觉质量影响并不一致,偏心和倾斜对非球面IOL及多焦点IOL的视觉质量影响较其他类型IOL大。回顾近年来研究白内障IOL植入术后倾斜和偏心的相关文献,并对其产生原因和影响不同类型IOL视觉质量的结果进行综述,以求提供更多的治疗选择和研究方向,改善患者预后。

Cataract phacoemulsification and intraocular lens(IOL) implantation are currently recognized as effective treatments for cataracts. The goal of cataract surgery has changed to refractive surgery to achieve good visual quality. Postsurgical IOL decentration and tilt can increase high-order aberrations and reduce visual quality. Different IOL have diverse effects on visual quality caused by postoperative decentration and tilt due to their design and other factors. Compared to the visual quality of other types of IOL, those of aspheric and multifocal IOLs are more susceptible to decentration and tilt. This paper reviews the relevant recent literature on tilt and decentration after IOL implantation, analyzes the cause and effect of the visual quality differences between various IOLs, and highlights additional treatment options and research directions to improve the prognosis of cataract patients.