Document Detail


Role of the human lens gradient-index profile in the compensation of third-order ocular aberrations.
MedLine Citation:
PMID:  22894475     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
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.
Authors:
José A Díaz; José Fernández-Dorado; Francisco Sorroche
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Journal of biomedical optics     Volume:  17     ISSN:  1560-2281     ISO Abbreviation:  J Biomed Opt     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-8-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9605853     Medline TA:  J Biomed Opt     Country:  -    
Other Details:
Languages:  ENG     Pagination:  075003     Citation Subset:  -    
Affiliation:
Universidad de Granada, Departamento de Óptica, Edificio Mecenas, 18071-Granada, Spain.
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