A Biomechanical Model of the Human Cornea
| Autor: | O. Núñez-Chongo, C. Muñoz-Villaescusa, A. J. Batista-Leyva |
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| Jazyk: | English<br />Spanish; Castilian |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Revista Cubana de Física, Vol 35, Iss 1, Pp 44-49 (2018) |
| Druh dokumentu: | article |
| ISSN: | 0253-9268 2224-7939 |
| Popis: | Numerical modeling of human cornea has paramount importance to test in silica surgical procedures and to understand the effect on human eyes of injuries and other external aggressions. To prepare a numerical model that could reproduce correctly corneal behavior, it is necessary firstly to select a type of elastic material and its mechanical model of response. Then a numerical procedure must be implemented; normally FEM is used for calculations. It is then necessary to select geometry, create a mesh and calculate the elastic constants of the model. In the present contribution we create a model based in Mooney Rivlin hyperelasticity, with a mesh consisting in three layers and eleven elements per meridian from the apex to limbus. Two geometries were tested: cornea fixed by limbus and a second one formed by cornea, corneal limbus and part of sclera. We also prepared and tested the numerical procedure for establishing the stress free configuration. |
| Databáze: | Directory of Open Access Journals |
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