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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish (US)
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
PublisherSPIE
Volume9307
ISBN (Print)9781628413977
DOIs
StatePublished - 2015
Event25th Conference on Ophthalmic Technologies - San Francisco, United States
Duration: Feb 7 2015Feb 8 2015

Other

Other25th Conference on Ophthalmic Technologies
CountryUnited States
CitySan Francisco
Period2/7/152/8/15

Keywords

  • Accommodation
  • Lens
  • Optomechanical Modelling
  • Presbyopia
  • Ray-Tracing
  • Refractive index

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

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