Importance of multiple loading scenarios for the identification of material coefficients of the human cornea

Harald Studer, Hansjörg Riedwyl and Philippe Büchler

Computer Methods in Biomechanics and Biomedical Engineering, 2012, vol. 15, issue 1, 93-99

Abstract: A mechanical balance between intraocular pressure and tissue stiffness defines the refractive shape of the human cornea. More and more daily surgical procedures modify that shape to achieve vision correction, which increases the demand for a profound understanding of the tissue mechanics. The wide variety of published mechanical properties foreshadows the difficulty of this task. The aim of this study is to show that such problems may arise from using the inverse method for fitting material models with multiple coefficients to a limited number (usually one) of experimental data. Using multiple sets of experimental data for the fitting process is proposed as a possible solution.

Date: 2012
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DOI: 10.1080/10255842.2011.552184

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