This edition first published 2011 by Blackwell Publishing Ltd
2011 by Heidi Featherstone and Elaine Holt
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Library of Congress Cataloging-in-Publication Data
Featherstone, Heidi
Small animal ophthalmology : whats your diagnosis? / Heidi Featherstone, Elaine Holt.
p. ; cm.
Includes bibliographical references and index.
ISBN 978-1-4051-5161-0 (pbk. : alk. paper)
1. Veterinary ophthalmology. 2. Pet medicine. I. Holt, Elaine. II. Title.
[DNLM: 1. Eye DiseasesveterinaryCase Reports. 2. Eye DiseasesveterinaryProblems and Exercises. 3. Animals, DomesticCase Reports. 4. Animals, DomesticProblems and Exercises. 5. Diagnosis, DifferentialCase Reports. 6. Diagnosis, DifferentialProblems and Exercises. SF 891]
SF891.F43 2011
636.089'77dc22
2010041328
A catalogue record for this book is available from the British Library.
This book is published in the following electronic formats: ePDF 9781444340013; ePub 9781444340020
Foreword
Welcome to one of the most useful and informative ophthalmology text-books to have been published in recent years. The authors are to be commended on creating a reference book that is unlike any other currently on the market. They are medical educators that have drawn from a wealth of private practice knowledge and experience to create a highly practical guide to some of the most common presentations of ophthalmic disease. This highly utilitarian and functional approach is exemplified by their overall organizational approach. Rather than assuming the traditional front to back approach taught in most classroom settings, the purpose of this text can be first best reflected in its chapters titles, whereby they encompass the most frequently encountered small animal patient complaints such as ocular discharge, the painful eye, the opaque eye, the abnormal pupil, blindness, and ocular trauma (to name just a few). The strength of this textbook is evident that all major topic areas have been presented using actual cases, which are both beautifully photodocumented and carefully organized. In addition to the numerous high quality coloured photographs, are clear illustrations, the results of advanced imaging modalities which in some cases utilize 3D reconstruction, and histopathology all which dramatically strengthen the calibre of each case presentation.
The book will appeal to veterinary clinicians at all stages of the educational process, ranging from veterinary students and new graduates to board-certified ophthalmic specialists. The employment of case-based examples prompts the reader to hone his/her clinical acumen by working through relevant questions pertaining to differential diagnoses and the selection of appropriate diagnostic tests. Diagnosis, treatment, prognosis, and discussion are clearly provided. Importantly, the authors recognize that, depending on the readers level of experience, different diagnostic and therapeutic strategies may, at times, be equally successful to those provided and thus ample opportunities for additional reading is provided by way of several appendices, glossaries, and extensive bibliographic material. As I have, I believe you will find this text one of the most enjoyable, informative, and user-friendly practical approaches to small animal ophthalmology to have been published in many years.
Elizabeth A. Giuliano, DVM, MS
Diplomate, American College of Veterinary Ophthalmologists
Preface
Veterinary ophthalmology is a visual discipline not because the eye is the organ of vision but because the evidence that is required to diagnose ocular disease in animals is often highly visible. In other veterinary specialities a problem typically requires extensive investigation, but in veterinary ophthalmology a thorough ocular examination and a few routine tests may well result in an accurate diagnosis. The challenge is to know what to look for, and then to interpret the clinical signs correctly. Techniques such as electroretinography and advanced diagnostic imaging have their place, but only in a small number of cases.
There are numerous textbooks in both the human and veterinary fields containing comprehensive information on all aspects of ophthalmology, from anatomy and physiology to the treatment of clinical disease. The aim of this book is to offer the reader a practical guide to diagnosis using a case-based, systematic approach. It is intended for anyone with an interest in veterinary ophthalmology, including the general practitioner and the veterinary student.
We are veterinary ophthalmologists working in busy referral practices, with experience in general practice and in undergraduate and postgraduate teaching. We have sought to provide a pragmatic approach to the diagnosis and management of ocular disease in small animals, and to share our thought processes, drawing on the broad spectrum of examples in our daily case loads, from extreme forms of common conditions to more complex ocular disease. Practical recommendations are supported by extensive photodocumentation, and an appendix of tips for interpreting the information obtained from ophthalmic examination.
Heidi Featherstone & Elaine Holt
Acknowledgements
As with any book, the finished work is possible only with the help of many people. We are indebted to numerous colleagues, not only for generously contributing case material, but also for their time and advice. For their ophthalmology expertise, we thank Peter Renwick, Christine Heinrich, John Mould, Mike Rhodes, Barbara Braus, Sue Manning, Elizabeth Giuliano, Ellison Bentley, Marnie Ford and David Gould. Peter Renwick and Christine Heinrich deserve special thanks for their generosity in sharing their library of photographs, built up over many years. John Mould also deserves special thanks for his exceptional photographic skills, and for his readiness to share his photographs. With respect to imaging, we are grateful to Paul Mahoney for his tireless help and advice on advanced imaging techniques, and to Ruth Dennis and Rob White for sharing their case material. Emma Scurrell has provided invaluable expertise, along with enthusiasm, on ophthalmic pathology, supported by excellent gross and histological photographs. Simon Scurrell has worked skilfully and painstakingly on the annotated diagrams. Photographing the eyes of conscious dogs and cats is a challenge that requires excellent handling skills and patience: special thanks to David Hindley, Stephanie Ascott, Tom Buckley, Nicola Millington, Lou Hadley and the nursing team at Willows Veterinary Centre and Referral Service. Sue Jenkins non-veterinary editing expertise has been invaluable throughout.