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Unconfined Compression of Porcine Ocular Lenses: Experiments and Finite Element Analysis

[+] Author Affiliations
Richard Regueiro, Adam Blanchard, Kristin Constancio, Logan Williams

University of Colorado at Boulder, Boulder, CO

Paper No. SBC2007-176812, pp. 973-974; 2 pages
doi:10.1115/SBC2007-176812
From:
  • ASME 2007 Summer Bioengineering Conference
  • ASME 2007 Summer Bioengineering Conference
  • Keystone, Colorado, USA, June 20–24, 2007
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-4798-5
  • Copyright © 2007 by ASME

abstract

Understanding the mechanics of lens accommodation (ability of the eye dynamically to focus near to far, or far to near) can assist in the diagnosis of early presbyopia as well as identify potential clinical treatments and lens prosthetic implantation strategies [1–3]. Related to the mechanism of focusing, presbyopia is an ocular disease that stems from age-related loss of lens accommodation leading to a loss of focusing range and near vision [4]. This is attributed to changes in ciliary muscle function, as well as changes in the mechanical properties of the lens substance, lens capsule, and zonules, presumably. The precise relationship of these changes, however, is not well described. The location of the lens in the eye is shown in Fig.1 [5].

Copyright © 2007 by ASME

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