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Proceedings Paper

Determining the optomechanical properties of accommodating gel for lens refilling surgery using finite element analysis and numerical ray-tracing
Author(s): Hooman Mohammad-Pour; Sangarapillai Kanapathipillai; Fabrice Manns; Arthur Ho
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Paper Abstract

A key step in the design of an accommodating gel to replace the natural contents of the presbyopic human crystalline lens is to find the equivalent homogeneous mechanical and material properties of the gel that yield comparable optical response as the lens with gradient properties. This process is compounded by the interplay between the mechanical and optical gradient. In order to find uniform properties of the lens both gradients need to be considered. In this paper, numerical ray-tracing and finite element method (FEM) are implemented to investigate the effects of varying the uniform elasticity and refractive index on the accommodative amplitude. Our results show that the accommodative amplitude be expressed as a function of gel refractive index and Young's modulus of elasticity. In other words infinite sets of elasticity and refractive index exist that yield a certain amount of accommodation.

Paper Details

Date Published: 12 March 2015
PDF: 5 pages
Proc. SPIE 9307, Ophthalmic Technologies XXV, 930715 (12 March 2015); doi: 10.1117/12.2076093
Show Author Affiliations
Hooman Mohammad-Pour, The Univ. of New South Wales (Australia)
Brien Holden Vision Institute (Australia)
Sangarapillai Kanapathipillai, The Univ. of New South Wales (Australia)
Fabrice Manns, Bascom Palmer Eye Institute, Univ. of Miami School of Medicine (United States)
Biomedical Optics & Laser Lab., Univ. of Miami (United States)
Arthur Ho, Univ. of New South Wales (Australia)
Brien Holden Vision Institute (Australia)
Bascom Palmer Eye Institute, Univ. of Miami School of Medicine (United States)


Published in SPIE Proceedings Vol. 9307:
Ophthalmic Technologies XXV
Fabrice Manns; Per G. Söderberg; Arthur Ho, Editor(s)

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