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Perceiving in DepthVolume 1 Basic Mechanisms$
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Ian P. Howard

Print publication date: 2012

Print ISBN-13: 9780199764143

Published to Oxford Scholarship Online: May 2012

DOI: 10.1093/acprof:oso/9780199764143.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 06 August 2021

image formation and accommodation

image formation and accommodation

(p.435) 9 image formation and accommodation
Perceiving in Depth

Ian P. Howard

Oxford University Press

The quality of the retinal image depends on optical factors such as chromatic and spherical aberrations and on the spacing of the receptors. An account of these factors is followed by a description of mechanisms responsible for the accommodation of the lens. First, the machinery of accommodation and the three types of accommodation are described. These are tonic accommodation, proximal accommodation, and accommodation induced by image blur. Induction of accommodation by image blur depends on blur detection and detection of the attributes of blur that indicate the required direction of accommodation. The chapter ends with a discussion of anisometropia and aniseikonia.

Keywords:   image formation, optical aberrations, accommodation, image blur, anisometropia, aniseikonia

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