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Continuum-Level Finite Element Modeling of the Optic Nerve Head Using a Fabric Tensor Based Description of the Lamina Cribrosa

[+] Author Affiliations
Michael D. Roberts, Yi Liang, Claude F. Burgoyne, J. Crawford Downs

Devers Eye Institute, Portland, OR

Richard T. Hart

The Ohio State University, Columbus, OH

Anthony J. Bellezza

Third Eye Associates, Camden, NJ

Paper No. SBC2007-176656, pp. 955-956; 2 pages
doi:10.1115/SBC2007-176656
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

Glaucoma is a chronic disease of the eye that can progress to severe vision impairment or blindness if left untreated. The principal site of glaucomatous damage is believed to be within the optic nerve head (ONH) where the axons of the retinal ganglion cells pass through an opening in the back of the sclera (the eye wall) on their way to form the orbital optic nerve. This opening is spanned by the lamina cribrosa (LC), a fenestrated connective tissue structure which provides both a load bearing function for the eye as well as support (both structural and metabolic) for axonal bundles as they traverse the porous space of the LC.

Copyright © 2007 by ASME

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