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Vision Res. 1999 May;39(9):1591-5.

Mechanics of accommodation of the human eye.

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  • 1Department of Engineering Science, University of Oxford, UK. harvey.burd@eng.ox.ac.uk

Abstract

The classical Helmholtz theory of accommodation has, over the years, not gone unchallenged and most recently has been opposed by Schachar at al. (1993) (Annals of Ophthalmology, 25 (1) 5-9) who suggest that increasing the zonular tension increases rather than decreases the power of the lens. This view is supported by a numerical analysis of the lens based on a linearised form of the governing equations. We propose in this paper an alternative numerical model in which the geometric non-linear behaviour of the lens is explicitly included. Our results differ from those of Schachar et al. (1993) and are consistent with the classical Helmholtz mechanism.

PMID:
10343853
[PubMed - indexed for MEDLINE]
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