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Journal of Biomedical Optics

Role of the human lens gradient-index profile in the compensation of third-order ocular aberrations
Author(s): José Antonio Díaz; Francisco Sorroche; Jose Fernandez-Dorado
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Paper Abstract

The open question regarding the compensation of the ocular aberrations between the cornea and the lens is currently being investigated. We report additional insights considering the role of the lens gradient-index (GRIN) profile in third-order ocular aberrations, since this profile changes through life. Thus, we have calculated the contribution of that profile to the ocular aberrations with aging by applying the Seidel third-order theory of tilted and decentered elements, and by using a schematic-eye model. The results show the GRIN profile is needed to account for the decoupling of the aberrations between the cornea and the lens because the geometrical changes of the ocular surfaces with aging are not enough. Therefore, the current developments of aging human-eye models, as well as the experimental studies, cannot neglect the changes of the lens GRIN structure through life when modelling mechanisms of the compensation of ocular aberrations.

Paper Details

Date Published: 6 July 2012
PDF: 12 pages
J. Biomed. Opt. 17(7) 075003 doi: 10.1117/1.JBO.17.7.075003
Published in: Journal of Biomedical Optics Volume 17, Issue 7
Show Author Affiliations
José Antonio Díaz, Univ. de Granada (Spain)
Francisco Sorroche, Univ. de Granada (Spain)
Jose Fernandez-Dorado, SnellOptics (Spain)

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