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Finite element based mechanical models of the cornea for pressure and indenter loading
1School of Mechanical Engineering, Georgia Institute of Technology, Atlanta 30332-0405.
Refractive & Corneal Surgery
|March 1, 1992
Abstract
Background:
In this article, we examine the finite element method and its use in mechanical modeling of the cornea.
Methods:
Both linear elastic and geometrically nonlinear models are considered. The effects of corneal geometry, boundary conditions, thickness, and the number of layers in the model are determined.
Results:
Results indicate that, for intraocular pressure loading, the thickness and the choice of boundary conditions at the limbus are significant.
Conclusions:
A model of tonometry showed that simulating the layered nature of the cornea and including the increased flexibility of large deformation are critical.