太原理工大学学报2024，Vol.55Issue(2)：376-383,8.DOI:10.16355/j.tyut.1007-9432.20230303
角膜塑形镜矫正效果影响因素的数值模拟
Numerical Simulation of Factors Influencing the Effectiveness of Orthokeratology Lens Correction
摘要
Abstract
[Purposes]The corneal shape and mechanical properties of cornea and contact lens ma-terial have a certain impact on the correction effect of contact lens.[Methods]In this paper,a finite el-ement model of corneal wearing orthokeratology lens was established by using hyperelasticity materi-als,and the biomechanical response of cornea after wearing lens was analyzed by changing the shape of cornea(different curvature and thickness)and the material parameters of cornea and orthokeratolo-gy lens.[Findings]The results showed that when the corneal curvature changed 4 m-1,the displace-ment difference at apex of the cornea central area changed by 15.7 μm,and when the corneal thickness changed by 75 μm,the displacement difference at apex of the central area changed by 12.3 μm;when the corneal material parameter k1 increased by 3 times,the change of displacement difference at apex of the cornea central area was 39.2 μm,when the C10 value increased by 4 times,the change of dis-placement difference was 55.5 μm,while when the orthokeratology lens material parameter E in-creased by 3 times,the change of displacement difference was only 0.2 μm.[Conclusions]When us-ing orthokeratology lens to correct myopia,it is necessary to fully consider the influence of corneal morphology and the mechanical properties of the cornea on the correction effect.关键词
角膜/角膜塑形镜/有限元模拟/生物力学Key words
cornea/orthokeratology lens/finite element simulation/biomechanics分类
医药卫生引用本文复制引用
胡郡琦,王晓君,张立华,李晓娜,侯杰..角膜塑形镜矫正效果影响因素的数值模拟[J].太原理工大学学报,2024,55(2):376-383,8.基金项目
国家自然科学基金资助项目(12072218,11872262) （12072218,11872262）
山西省自然科学基金资助项目(20210302123150) （20210302123150）
