角膜激光矫正术后上皮重塑的研究进展

Advances in Corneal Epithelial Remodeling after Laser Vision Correction

角膜上皮细胞具有重塑性,角膜激光手术后,为了维持角膜前表面的光滑,上皮细胞重新排列,上皮厚度在不同区域和象限呈现不均匀分布。角膜上皮厚度的变化幅度受拟矫正屈光度、手术方式、眼表状态等因素的影响。角膜上皮重塑与术后的屈光回退有一定的相关性。认识角膜激光矫正术后上皮重塑的规律有助于提高屈光手术的精确性。现笔者对目前角膜上皮厚度的测量方法以及各种角膜激光矫正术后的上皮重塑特点进行综述。

The epithelial cell has the ability tore-establish itself.After corneal laser surgery,the epithelium remodels to obtain a smooth anterior corneal surface and reveals a non-uniform distribution across the entire cornea.The epithelial remodeling is related to the attempted refractive error correction and can be influenced by the surgical procedure and ocular surface condition.It plays a role in postoperative refractive regression.Understanding the changes in corneal epithelial thickness helps to improve the accuracy of refractive surgery.This article reviews the measurements of corneal epithelial thickness and postoperative epithelial remodeling.