一种用于角膜屈光手术生物力学响应的解析可解模型。

An analytically solvable model for biomechanical response of the cornea to refractive surgery.

作者信息

Djotyan G P, Kurtz R M, Fernández D C, Juhasz T

机构信息

University of Michigan, College of Engineering, Department of Biomedical Engineering, Ann Arbor 48109, USA.

出版信息

J Biomech Eng. 2001 Oct;123(5):440-5. doi: 10.1115/1.1388293.

DOI:10.1115/1.1388293

PMID:11601729

Abstract

An analttically solvable model that considers the elasticity of the cornea is developed for use in the current and novel corneal refractive surgery procedures. The model assumes that the cornea is a thin spheroid shell with an elastic response to intraocular pressure. The value of the Young's modulus of the post-operative cornea and its dependence on the geometric parameters of the ablation zone are estimated employing "best-fit" approach to nomograms currently used in corneal refractive surgery. These elasticity parameters are applied for quantitative modeling of different types of refractive surgery for myopia.

摘要

为用于当前和新型角膜屈光手术程序，开发了一个考虑角膜弹性的可解析模型。该模型假设角膜是一个对眼内压有弹性响应的薄椭球体壳。采用目前角膜屈光手术中使用的列线图的“最佳拟合”方法，估计术后角膜的杨氏模量值及其对消融区几何参数的依赖性。这些弹性参数用于近视不同类型屈光手术的定量建模。