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Vision Res. 2000;40(17):2233-40.

Why we need reading-glasses before a zimmer-frame.

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  • 1Age Concern Institute of Gerontology, Waterloo Wing, King's College London, Waterloo Rd, SE1 8WA, London, UK. robert.weale@kcl.ac.uk

Abstract

Accommodative loss represents the fastest human biological decrement. Why? To examine this, the shape of the eye-lens during accommodation or its relaxation is analysed with special reference to age-related changes. The capsule is viewed as a force transmitter: the distribution of forces along centripetal capsular arcs and the resulting stresses and strains are calculated. The effect of zonular 'shifts' is considered. Age-related accommodative loss can be modelled successfully if changes in mechanical properties are linked to those in lenticular and capsular shape.

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PMID:
10927110
[PubMed - indexed for MEDLINE]
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