[Effection of tear film stability on orthokeratology].

Orthokeratology (Ortho-K) is one of the effective methods to control the development of myopia in children and adolescents. The mechanical pressure of eyelids on the Ortho-K lens and the hydraulic effect of tears under the Ortho-K lens can alter the curvature or shape of the cornea, which can correct refractive error and control myopia development progress. The tear film is a thin layer of liquids evenly distributing in the conjunctival sac. Wearing an Ortho-K lens can decrease the tear film stability, which will influence the Ortho-K. In this article, the relevant domestic and overseas research results are summarized and analyzed, aiming to sort out and discuss the effection of tear film stability on the fitting, shaping, safety, and visual quality of the Ortho-K, as well as to provide suggestions for clinicians and researchers.角膜塑形术是控制青少年儿童近视发展的有效方法之一，通过眼睑对塑形镜片产生的机械压力和塑形镜片下泪液产生的液压效应对角膜曲率或形态进行重塑，达到矫正屈光不正和控制近视发展的效果。泪膜是结膜囊中均匀分布的薄层液体，配戴角膜塑形镜可导致泪膜稳定性下降，从而对角膜塑形术造成影响。本文汇总国内外相关研究结果，旨在梳理和探讨泪膜稳态对角膜塑形镜的验配、塑形效果、配戴安全性和视觉质量等方面的影响，阐明泪膜稳态对角膜塑形术的重要性，为临床开展工作和相关研究提供参考。.