The Eyes - Ian Peate - E-Book

The Eyes E-Book

Ian Peate

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PEATE’S BODY SYSTEMS
THE EYES

A CONCISE, ILLUSTRATED, AND ACCESSIBLE GUIDE TO THE EYES

Each of the twelve volumes in Peate’s Body Systems series is rooted in the belief that a deep and thorough understanding of the human body is essential for providing the highest standard of care. Offering clear, accessible and up-to-date information on different body systems, this series bridges the gap between complex scientific concepts and practical, everyday applications in health and care settings. This series makes for an invaluable resource for those committed to understanding the intricacies of human biology, physiology and the various systems that sustain life.

The Eyes is the perfect companion for students and newly registered practitioners across nursing and allied health fields with an interest in eye care, providing a comprehensive yet easy-to-digest guide for both academic and clinical application.

  • Equips healthcare students and practitioners with the necessary information to provide safe and competent care
  • Features colourful illustrations to aid comprehension, clarify complicated concepts, and render content more engaging and accessible
  • Empowers readers to adapt to a rapidly evolving healthcare landscape, preparing them for the future of healthcare delivery
  • Contains information necessary for effective patient care of those with glaucoma, cataract, macular degeneration, and other eye diseases and conditions

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Seitenzahl: 299

Veröffentlichungsjahr: 2025

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Table of Contents

Cover

Table of Contents

Title Page

Copyright

Preface

Acknowledgements

Chapter 1 Anatomy and Physiology: The Eyes

The Sense of Sight

The Anatomy and Physiology of the Eye

Conjunctiva

Lacrimal Apparatus

The Eye

Organisation of the Retina

Colour Vision and Retinal Structure

Eye Chambers

Focusing Images on the Retina

Refraction

Focal Length

Myopia, Hyperopia and Presbyopia

Processing of Visual Information

Central Processing of Visual Information

Conclusion

Glossary of Terms

Multiple Choice Questions

References

Chapter 2 Assessment of the Eyes

Importance of Vision Assessment

The Assessment

Patient History in Ophthalmic Assessment

Documentation of Findings

Testing Visual Function

LogMAR Vision Testing

Tumbling ‘E’, ‘E’ Test

Colour Vision Assessment

Diagnostic Tests

Conclusion

Glossary of Terms

Multiple Choice Questions

References

Chapter 3 Glaucoma

Pathophysiological Changes Associated with Primary Open-angle Glaucoma

Epidemiology

Risk Factors

Clinical Presentation

Clinical Investigations and Diagnosis

Management

Health Teaching

Conclusion

Glossary of Terms

Multiple Choice Questions

References

Chapter 4 Cataract

Pathophysiological Changes Associated with Cataract

Epidemiology

Risk Factors

Clinical Presentation

Clinical Investigations and Diagnosis

Management

Surgical Management

Cataract Surgery Procedure

Types of Intra-optical Lenses

Postoperative Care

Health Teaching

Conclusion

Glossary of Terms

Multiple Choice Questions

References

Chapter 5 Conjunctivitis

Pink Eye

Viral Conjunctivitis

Bacterial Conjunctivitis

Allergic Conjunctivitis

Chemical Conjunctivitis

Giant Papillary Conjunctivitis

Neonatal Conjunctivitis

Non-infectious Conjunctivitis

Pathophysiological Changes Associated with Conjunctivitis

Conjunctival Anatomy and Function

Types of Conjunctivitis and Specific Pathophysiological Mechanisms

Protective Mechanisms and Self-limiting Nature

Epidemiology

Ophthalmia Neonatorum

Risk Factors

General Risks Across All Types

Populations at Higher Risk

Clinical Presentation

Clinical Investigations and Diagnosis

Management

Bacterial Conjunctivitis

Viral Conjunctivitis

Allergic Conjunctivitis

Chemical Conjunctivitis

Further Considerations

Health Teaching

Conclusion

Glossary of Terms

Multiple Choice Questions

References

Chapter 6 Age-related Macular Degeneration

Macular Degeneration

Pathophysiological Changes Associated with Age-related Macular Degeneration

Dry (Non-exudative or Atrophic)

Wet (Neovascular or Exudative) Age-related Macular Degeneration

Epidemiology

Risk Factors

Clinical Presentation

Dry Age-related Macular Degeneration (Atrophic)

Wet Age-related Macular Degeneration (Neovascular or Exudative)

General Symptoms of Age-related Macular Degeneration

Clinical Investigations and Diagnosis

Initial Consultation

Symptom Inquiry

Structured Interviews and Questionnaires

Documentation and Follow-up

Visual Acuity Test

Amsler Grid Test

Fundoscopic Examination (Ophthalmoscopy)

Optical Coherence Tomography

Fluorescein Angiography

Indocyanine Green Angiography

Fundus Autofluorescence

Electroretinography

Management

Health Teaching

Conclusion

Glossary of Terms

Multiple Choice Questions

References

Chapter 7 Retinitis

Retinal Dystrophies

Types

Symptoms

Causes

Pathophysiological Changes Associated with Retinitis Pigmentosa

Genetic Mutations

Photoreceptor Degeneration

Retinal Pigment Epithelium Changes

Vascular Changes

Retinal Remodelling

Inflammatory Responses

Secondary Effects

Clinical Implications

Epidemiology

Risk Factors

Genetic Mutations

Environmental and Lifestyle Factors

Age of Onset

Clinical Presentation

Initial Symptoms

Clinical Investigations and Diagnosis

Patient History

Symptom Onset and Progression

Central Vision Changes

Family History

Previous Ocular and Medical History

Visual Function Impact

Psychosocial Aspects

Examination and Investigations

Clinical Examination

Retinal Imaging

Functional Tests

Genetic Testing

Additional Tests

Visual Field Testing (Perimetry)

Management

Gene Therapy

Health Teaching

Conclusion

Glossary of Terms

Multiple Choice Questions

References

Chapter 8 Presbyopia

Myopia, Hyperopia and Presbyopia

Emmetropia

Refractive Error

Pathophysiological Changes Associated with Presbyopia

Epidemiology

Risk Factors

Clinical Presentation

Clinical Investigations and Diagnosis

Management

Health Teaching

Conclusion

Glossary of Terms

Multiple Choice Questions

References

Index

End User License Agreement

List of Illustrations

Chapter 1

Figure 1.1 Accessory structures of the eye

Figure 1.2 The lacrimal apparatus

Figure 1.3 The anatomy of the eye

Figure 1.4 Cross‐section of the retina

Figure 1.5 Rods and cones

Figure 1.6 Refraction of light passing from air (less dense) to water (dense)

Figure 1.7 Focal length

Figure 1.8 Accommodation to (a) viewing distant (far) object and (b) viewing close (near)...

Figure 1.9 Near-sighted (myopic) eye (a) uncorrected and (b) corrected by a concave lens

Figure 1.10 Long-sighted (hyperopic) eye (a) uncorrected and (b) corrected by a convex len...

Chapter 2

Figure 2.1 Redness

Figure 2.2 Ptosis

Figure 2.3 Snellen chart

Chapter 3

Figure 3.1 Glaucoma

Chapter 4

Figure 4.1 The eye

Figure 4.2 (a) Normal lens and (b) lens affected by cataract

Figure 4.3 Phacoemulsification

Chapter 5

Figure 5.1 The eye and associated structures (the conjunctiva)

Chapter 6

Figure 6.1 The eye showing the position of the macula

Figure 6.2 Normal macula and degenerated macula

Chapter 7

Figure 7.1 Retinal layers

List of Tables

Chapter 1

Table 1.1 The sense of sight

Chapter 2

Table 2.1 Clinical findings from an eye examination

Table 2.2 Some diagnostic tests in ophthalmology

Chapter 3

Table 3.1 Types of glaucoma

Table 3.2 Key risk factors associated with glaucoma

Table 3.3 Approaches to the management of glaucoma

Chapter 4

Table 4.1 Types of cataracts

Table 4.2 Risk factors associated with cataract

Table 4.3 Examinations and investigations

Table 4.4 Health teaching needs of people with cataracts

Chapter 5

Table 5.1 Risks associated with different types of conjunctivitis

Table 5.2 Clinical features associated with conjunctivitis

Table 5.3 Investigations used in a diagnosis of conjunctivitis

Table 5.4 Key areas to focus on with regards to the health teaching needs of people with...

Chapter 6

Table 6.1 Risk factors associated with age-related macular degeneration (AMD)

Table 6.2 A summary of the differences between dry and wet age-related macular degenerat...

Table 6.3 Health teaching needs for people with age-related macular degeneration (AMD)

Chapter 7

Table 7.1 Health teaching needs for people with retinitis pigmentosa

Chapter 8

Table 8.1 Refractory disorders

Table 8.2 The signs and symptoms associated with presbyopia

Table 8.3 The management of presbyopia

Guide

Cover

Table of Contents

Title Page

Copyright

Preface

Acknowledgements

Begin Reading

Index

End User License Agreement

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Peate’s Body Systems

The Eyes

Ian Peate, OBE FRCN EN(G) RGN DipN(Lond) RNT BEd(Hons) MA(Lond) LLM

Editor in Chief, British Journal of Nursing;

Consultant Editor, Journal of Paramedic Practice;

Consultant Editor, International Journal for Advancing Practice;

Visiting Professor, Northumbria University;

Visiting Professor, Buckinghamshire New University;

Professorial Fellow, University of Roehampton;

Visiting Senior Clinical Fellow, University of Hertfordshire

This edition first published 2025.

©2025, John Wiley & Sons Ltd

All rights reserved, including rights for text and data mining and training of artificial intelligence technologies or similar technologies. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, except as permitted by law. Advice on how to obtain permission to reuse material from this title is available at http://www.wiley.com/go/permissions.

The right of Ian Peate to be identified as the author of this work has been asserted in accordance with law.

Registered Office(s)

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Wiley also publishes its books in a variety of electronic formats and by print-on-demand. Some content that appears in standard print versions of this book may not be available in other formats.

Trademarks: Wiley and the Wiley logo are trademarks or registered trademarks of John Wiley & Sons, Inc. and/or its affiliates in the United States and other countries and may not be used without written permission. All other trademarks are the property of their respective owners. John Wiley & Sons, Inc. is not associated with any product or vendor mentioned in this book.

Limit of Liability/Disclaimer of Warranty

While the publisher and authors have used their best efforts in preparing this work, they make no representations or warranties with respect to the accuracy or completeness of the contents of this work and specifically disclaim all warranties, including without limitation any implied warranties of merchantability or fitness for a particular purpose. No warranty may be created or extended by sales representatives, written sales materials or promotional statements for this work. This work is sold with the understanding that the publisher is not engaged in rendering professional services. The advice and strategies contained herein may not be suitable for your situation. You should consult with a specialist where appropriate. The fact that an organization, website, or product is referred to in this work as a citation and/or potential source of further information does not mean that the publisher and authors endorse the information or services the organization, website, or product may provide or recommendations it may make. Further, readers should be aware that websites listed in this work may have changed or disappeared between when this work was written and when it is read. Neither the publisher nor authors shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages.

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Cover Design: Wiley

Preface

Welcome to Peate’s Body Systems; there are 12 books in the series. This is a comprehensive collection of textbooks designed to support and enrich the knowledge of health and care workers across various fields. This series is intended to be a valuable resource for those who are dedicated to understanding the intricacies of human biology, physiology and the various systems that sustain life.

Peate’s Body Systems series is rooted in the belief that a deep and thorough understanding of the human body is essential for providing the highest standard of care. Each book in this series is thoroughly crafted to offer clear, accurate and up-to-date information on different body systems. The aim is to bridge the gap between complex scientific concepts and practical, everyday applications in healthcare settings.

Purpose and Scope

The purpose of this series is to provide health and care workers with:

Foundational knowledge, with explanations of the anatomical structures and physiological functions of the body systems

Insights into how these systems interact with each other and how they are impacted by various diseases and conditions, highlighting clinical relevance and encouraging practical application

Structure of the Series

Each book in Peate’s Body Systems focuses on a specific body system:

The Cardiovascular System

The Respiratory System

The Digestive System

The Renal System

The Nervous System

The Endocrine System

The Female Reproductive System

The Male Reproductive System

The Musculoskeletal System

The Skin

The Ear, Nose and Throat

The Eyes

Every chapter is designed to be comprehensive yet accessible, making complex information easier to digest and apply. Figures, tables, boxes, illustrations and flowcharts have been extensively used to support visual learning and reinforce key concepts.

This series is tailored for:

Healthcare students: those in nursing and allied health programmes

Practicing professionals: nurses, therapists and other care workers seeking to deepen their understanding and stay current with the latest developments in health and care

Educators and trainers: educators who require reliable and comprehensive teaching materials to advise and instruct the next generation of healthcare providers

Commitment to Excellence.

The series is committed to providing quality educational resources that not only inform but also inspire and empower health and care workers. By equipping you with a robust understanding of the systems of life, you will be better prepared to make informed decisions, deliver compassionate care and ultimately improve patient outcomes.

Thank you for choosing Peate’s Body Systems as your trusted resource. I hope these textbooks serve as a valuable tool in your ongoing journey of learning and professional development.

Ian Peate

London

Acknowledgements

I would like to acknowledge the help and support of my partner Jussi Lahtinen. Acknowledgements also go to staff at the RCN Library in London. My thanks go to Tom Marriott, Christabel Daniel Raj, Bhavya Boopathi and all those at Wiley.