Finite element study on the effects of GRIN order on the accommodative response of the human crystalline lens

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

doi:10.1117/12.2044430

Finite element study on the effects of GRIN order on the accommodative response of the human crystalline lens

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

Biomedical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The gradient refractive-index (GRIN) inside the crystalline lens has been described using a number of functions. One of the most widely used functions for this purpose is the polynomial. Changing the order of the GRIN polynomials alters the relative refractive index profile across (radially) and along (axially) the lens. In this paper, numerical methods are used to investigate the effects of varying GRIN polynomial order on the accommodative response of the lens; in particular, accommodative amplitude. Our results suggest that the GRIN order does not have a significant influence on the accommodation amplitude.

Original language	English (US)
Title of host publication	Ophthalmic Technologies XXIV
Publisher	SPIE
ISBN (Print)	9780819498434
DOIs	https://doi.org/10.1117/12.2044430
State	Published - Jan 1 2014
Event	24th Conference on Ophthalmic Technologies - San Francisco, CA, United States Duration: Feb 1 2014 → Feb 2 2014

Publication series

Name	Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume	8930
ISSN (Print)	1605-7422

Other

Other	24th Conference on Ophthalmic Technologies
Country	United States
City	San Francisco, CA
Period	2/1/14 → 2/2/14

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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Cite this

Mohammad-Pour, H., Kanapathipillai, S., Manns, F., & Ho, A. (2014). Finite element study on the effects of GRIN order on the accommodative response of the human crystalline lens. In Ophthalmic Technologies XXIV [89300R] (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 8930). SPIE. https://doi.org/10.1117/12.2044430

Finite element study on the effects of GRIN order on the accommodative response of the human crystalline lens. / Mohammad-Pour, Hooman; Kanapathipillai, Sangarapillai; Manns, Fabrice; Ho, Arthur.

Ophthalmic Technologies XXIV. SPIE, 2014. 89300R (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 8930).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Mohammad-Pour, H, Kanapathipillai, S, Manns, F & Ho, A 2014, Finite element study on the effects of GRIN order on the accommodative response of the human crystalline lens. in Ophthalmic Technologies XXIV., 89300R, Progress in Biomedical Optics and Imaging - Proceedings of SPIE, vol. 8930, SPIE, 24th Conference on Ophthalmic Technologies, San Francisco, CA, United States, 2/1/14. https://doi.org/10.1117/12.2044430

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abstract = "The gradient refractive-index (GRIN) inside the crystalline lens has been described using a number of functions. One of the most widely used functions for this purpose is the polynomial. Changing the order of the GRIN polynomials alters the relative refractive index profile across (radially) and along (axially) the lens. In this paper, numerical methods are used to investigate the effects of varying GRIN polynomial order on the accommodative response of the lens; in particular, accommodative amplitude. Our results suggest that the GRIN order does not have a significant influence on the accommodation amplitude.",

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