SMILE术后视觉质量的研究进展

Research progress of visual quality after SMILE

飞秒激光小切口角膜基质透镜取出术(SMILE)是目前最先进的角膜屈光手术之一。与传统角膜屈光手术不同,SMILE手术实现了微创和无瓣。因此,SMILE术后视觉质量的评估也具有特点,目前国内外最新研究证实SMILE术后裸眼视力可显著提高且术后屈光状态稳定,但对SMLIE术后高阶像差、调制传递函数截止频率(MTF cut off)、客观散射指数(OSI)等客观视觉质量指标及其影响因素的认识却不尽相同。本文针对SMILE术后视觉质量及其影响因素进行综述,为临床提供帮助。

Femtosecond laser small incision lenticule extraction(SMILE)is one of the most advanced corneal refractive operations at present.Different from other traditional corneal refractive operations,SMILE achieves minimally invasive and valveless operation.Therefore,the evaluation of postoperative visual quality of SMILE also has its own characteristics,at present,the latest research at home and abroad has confirmed that the naked eye vision can be significantly improved and the refractive status is stable after SMILE.However,there are different understandings of the objective visual quality indexes and their influencing factors,such as higher-order aberration,modulation transfer function cut off(MTF cut off)and objective scatter index(OSI)after SMILE.This paper reviews the postoperative visual quality and its influencing factors after SMILE to provide clinical help.