Determining the optomechanical properties of accommodating gel for lens refilling surgery using finite element analysis and numerical ray-tracing

Hooman Mohammad-Pour; Sangarapillai Kanapathipillai; Fabrice Manns; Arthur Ho

doi:10.1117/12.2076093

12 March 2015 Determining the optomechanical properties of accommodating gel for lens refilling surgery using finite element analysis and numerical ray-tracing

Hooman Mohammad-Pour, Sangarapillai Kanapathipillai, Fabrice Manns, Arthur Ho

Author Affiliations +

Proceedings Volume 9307, Ophthalmic Technologies XXV; 930715 (2015) https://doi.org/10.1117/12.2076093
Event: SPIE BiOS, 2015, San Francisco, California, United States

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.

Citation Download Citation

Hooman Mohammad-Pour, Sangarapillai Kanapathipillai, Fabrice Manns, and Arthur Ho "Determining the optomechanical properties of accommodating gel for lens refilling surgery using finite element analysis and numerical ray-tracing", Proc. SPIE 9307, Ophthalmic Technologies XXV, 930715 (12 March 2015); https://doi.org/10.1117/12.2076093

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