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Author:   R.A. Weale
Publisher:   Oxford University Press
Imprint:   Oxford University Press
Dimensions:   Width: 15.00cm , Height: 2.10cm , Length: 23.00cm
Weight:   0.642kg
ISBN:  

9780192620347

ISBN 10:   0192620347
Pages:   281
Publication Date:   01 August 1992
Audience:   College/higher education ,  Professional and scholarly ,  Undergraduate ,  Postgraduate, Research & Scholarly
Format:   Hardback
Publisher's Status:   Active
Availability:   To order  
Stock availability from the supplier is unknown. We will order it for you and ship this item to you once it is received by us.

Table of Contents

Part 1 Theories: senescence - is it definable?; ideas on senescence; is senescence planned?; organ-based concepts of senescence; cellular senescence; from senescent cells to genes for ageing. Part 2 The retinal image: image homoeostasis; a brief survey of the optics of the eye; static refraction; accommodation; a possible evolutionary pressure; absorption and diffusion; lenticular absorption of light; absorption and environment; lenticular fluorescence; scattering of light; cataract. Part 3 Retinal senescence: losses in the brain; further remarks on retinal vasculature; age and the retinal photoreceptors; the macular pigment; other retinal cells; Bruch's membrane; the retinal pigment epithelium (RPE); non-visual effects of visible radiations; age-related macular complications. Part 4 Senescent vision: absolute visual thresholds; incremental thresholds, with special reference to short-wavelength stimuli; spectral sensitivity; the visual field; glare, light adaptation and related effects; contrast sensitivity; spatial and temporal parameters; colour vision. Part 5 Coda - correlation or coincidence?: vital statistics; an anthropological aside; what limits life?; limiting functions; the endpoint: is senescence programmed?

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