title: Mechanics of accommodation of the human eye.
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.
authors.affiliation: Department of Engineering Science, University of Oxford, UK. harvey.burd@eng.ox.ac.uk
authors.forename: H J
authors.initials: HJ
authors.lastname: Burd
authors.forename: S J
authors.initials: SJ
authors.lastname: Judge
authors.forename: M J
authors.initials: MJ
authors.lastname: Flavell
mesh_terms: D000065:Accommodation, Ocular / Q000502:physiology*; D006801:Humans; D007908:Lens, Crystalline / Q000502:physiology; D008433:Mathematics; D008959:Models, Neurological; D013314:Stress, Mechanical