NOTES ON VETERINARY OPHTHALMOLOGY

N O T E S O N V E T E R I N A RY O P H T H A L M O L O G Y

Sheila Crispin MA Vet MB BSc PhD

DVA DVOphthal DipECVO FRCVS

Professor of Comparative Ophthalmology

University of Bristol

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First published 2005

Library of Congress Cataloging-in-Publication Data

Crispin, Sheila M.

Notes on veterinary ophthalmology / Sheila Crispin. – 1st ed.

p.cm.

Includes bibliographical references (p. ) ISBN 0-632-06416-1 (pbk. : alk. paper) 1. Veterinary ophthalmology. I. Title.

SF891.C75 2005 636.089¢77 – dc22

2004009930

ISBN 0-632-06416-1

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PREFACE AND ACKNOWLEDGEMENTS

This brief text comprises the ophthalmology notes used to teach the theory of veterinary ophthalmology to generations of veterinary students. They have been expanded to provide a more comprehensive overview for those in general practice with an interest in, but no specialist knowledge of, veterinary ophthalmology. The first section sets out the instruments that are used and the manner in which examination of the eye and adnexa is performed; this is followed by a section on emergencies and trauma that crosses the species. There are then sections that cover general and canine ophthalmology, feline ophthalmology, rabbit ophthalmology, farm animal ophthalmology and equine ophthalmology. The notes conclude with brief appendices on ophthalmic terminology, topical medical preparations, basic principles of anaesthesia and surgery and the cranial nerves innervating the eye and adnexa.

I am indebted to Janssen Animal Health for a most generous donation towards the cost of the colour photographs. I am very grateful to the Photography Unit of the Bristol Veterinary School for many of the photographs taken by Mr John Conibear and Mrs Tracy Dewey and to Mr Nick Crabb for the line drawings. I am particularly indebted to Mr John Mould for the excellent gross and microscopic preparations of the eye.

I wish to acknowledge the major contributions of Professor Dennis Brooks and Dr Andy Matthews to uveitis and glaucoma in the equine section. My past colleagues in the Ophthalmology Unit have given generously of their time and expertise and particular thanks go to Dr David Gould for commenting on early drafts of the manuscript and also to Mr Jim Carter and Mr Rob Lowe for their support. Any errors, however, rest entirely with the author.

My thanks go to many colleagues, in both medical and veterinary ophthalmology, for engendering and stimulating my interest in this fascinating subject.

S. Crispin

2004