Research Papers: General

Role of the human lens gradient-index profile in the compensation of third-order ocular aberrations

[+] Author Affiliations
José A. Díaz, Francisco Sorroche

Universidad de Granada, Departamento de Óptica, Edificio Mecenas, 18071–Granada, Spain

José Fernández-Dorado

SnellOptics, Prat de la Riba, 35, 08222–Terrassa, Spain

J. Biomed. Opt. 17(7), 075003 (Jul 06, 2012). doi:10.1117/1.JBO.17.7.075003
History: Received February 2, 2012; Revised May 19, 2012; Accepted May 22, 2012
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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.

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© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

José A. Díaz ; José Fernández-Dorado and Francisco Sorroche
"Role of the human lens gradient-index profile in the compensation of third-order ocular aberrations", J. Biomed. Opt. 17(7), 075003 (Jul 06, 2012). ; http://dx.doi.org/10.1117/1.JBO.17.7.075003


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