Essentials of Ophthalmology
Essentials of Ophthalmology
Seventh Edition
Samar K Basak MBBS (Cal) MD (AIIMS) DNB FRCS (Glasgow)
Diplomate of National Board of Examiners in Ophthalmology, India
Director Disha Eye Hospitals Kolkata, West Bengal, India
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Essentials of Ophthalmology
Sixth Edition : 2016
Seventh Edition : 2019
9789352709885
Printed at
Dr Bani Biswas
Who still loves me even after extensive hours with this book.
The sixth edition of Essentials of Ophthalmology was published in January, 2016. Since then, much has changed in the landscape of medicine and health-care, and more specifically, in the field of ophthalmology. As our living environments and surrounding technologies change, so do the complications in the human body. Over the past three years, as a result of new studies and researches conducted and published, we have seen evolutions in disease management, diagnosis, surgical techniques, treatment patterns, hospital policies and so on. Therefore, it has become necessary to bring out this updated seventh edition of the book.
The highlights of this edition are—latest medical and surgical management of some diseases, and updates on newer investigations. The new look and the use of American spellings make the book reach out to a wider range of international readers. However, a few things have not changed in this edition, like its predecessors, plenty of diagrams and photographs are in four color. The bulleted format of the book, detailed illustrations, a selection of slit-lamp examination, and such features which facilitate revision have been retained.
The making of this edition has also been aided by the generous feedback from its readers, who are not just undergraduates, but also postgraduates and practising ophthalmologists from the Indian subcontinent. Thank all of you for your suggestions, thoughts and for pointing out the typos that were in the previous edition. Much appreciation also to the optometrists, who have written into tell that they have gained insight from the book. The sustained encouragement and engagement from readers is a great motivation to prepare a better edition.
I take this opportunity to thank all the doctors and staff members of Disha Eye Hospitals for their continued support and involvement. As usual, Dr Soham Basak has helped me polish this edition, and thanks to my wife Dr Bani and my daughter Sohini.
Finally, I do hope that this edition will encourage the readers to think critically about ophthalmology and ophthalmological practises. As always, I welcome all your suggestions, criticisms and comments.
Samar K Basak
E-mail: basak_sk@hotmail.com
Preface to the First Edition
Most medical colleges do not have a required undergraduate teaching course in ophthalmology. Consequently, the students are often sadly deficient in this subject, unless they are specially interested. In adition, an acute shortage of time, prevents the students from reading large textbooks on this subject. Many students complain that most of the available books are either too brief or too extensive. It is with the hope of bridging this gap that I have written this book.
This book focusses on the information in a concise, step-wise, outline format which is essential for getting a true picture of the subject. The arrangement of the subject matter is to-the-point, and up-to-date with plenty of line diagrams which are easily reproducible during examination. Though this book is essentially meant for the undergraduate students, I hope, it will be very useful to the postgraduate students as well as practising ophthalmologists, for a quick revision of the subject.
In conclusion, I shall be happy if this book proves itself to be a valuable guide both for the undergraduate and postgraduate students, especially during their examination. Any critical comment and suggestion from the students and teachers, regarding this effort, will be appreciated.
Samar K Basak
Acknowledgments
I am thankful to Prof BN Nag, Principal, NRS Medical College, Kolkata, West Bengal, India, for his support and encourgament. I am also thankful to the teachers, postgraduate and undergraduate students in the Department of Ophthalmology, for inspiring me during writing this book.
I am extremely grateful to my teacher, Prof VK Dada, Ex-Chief, RP Center for Ophthalmic Sciences, AIIMS, New Delhi, who had spent his valuable time reading the manuscript.
The material of this book is drawn from many sources—Parsons’ Diseases of the Eye, Kanski's Clinical Ophthalmology, Trevor-Roper's The Eye and its Disorders, Newell's Ophthalmology: Principles and Concepts, Wolff's Anatomy of the Eye and Orbit, Bruce-Shield's A Study Guide of Glaucoma, Abram's Practice of Refraction. I express my sincere gratitude to all authors and respective publishers. For any instance, in which I have omitted to mention its source, it is hoped that the author will accept this blanket of acknowledgments.
I am greatly indebted to Dr Amitava Kundu, who has helped me to compile the manuscript. I gratefully thank my wife, Dr Bani Biswas and my children Soham and Sohini, for their cheerful acceptance of many evenings and holidays sacrificed, so that I could complete this book. Finally, I would like to convey my gratitude to Shri Jitendar P Vij (Group Chairman), Mr Ankit Vij (Managing Director), Mr MS Mani (Group President), Dr Madhu Choudhary (Publishing Head–Education), Dr Swapnil Shikha (Assistant Manager–Publishing) and all technical staff of M/s Jaypee Brothers Medical Publishers (P) Ltd, New Delhi, India.