• PDF / 6,771,736 Bytes
• 147 Pages / 504.63 x 737.01 pts Page_size
• 60 Downloads / 242 Views

DOWNLOAD

REPORT

---

123

Primary Angle Closure Glaucoma (PACG)

Clement C. Y. Tham Editor

Primary Angle Closure Glaucoma (PACG) A Logical Approach in Management

Editor Clement C. Y. Tham Department of Ophthalmology and Visual Sciences The Chinese University of Hong Kong, Hong Kong Eye Hospital Hong Kong SAR China

ISBN 978-981-15-8119-9    ISBN 978-981-15-8120-5 (eBook) https://doi.org/10.1007/978-981-15-8120-5 © Springer Nature Singapore Pte Ltd. 2021 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, expressed or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. This Springer imprint is published by the registered company Springer Nature Singapore Pte Ltd. The registered company address is: 152 Beach Road, #21-01/04 Gateway East, Singapore 189721, Singapore

Foreword

Angle closure is a cause of more preventable blindness in the world than is open-angle glaucoma. I say that not as a pronouncement of faith but just because that is how the statistics have been presented over the past decade. Before I comment on this excellent and needed text, however, allow me to put in some background on the subject, because over the past years, it has been underdiagnosed or unrecognized and a subject of significant controversy in academic circles. Earlier controversies, beginning in the nineteenth century, involved the mechanisms of aqueous production and outflow. Prior to the twentieth century, angle-closure glaucoma as a distinct entity was unknown. Well into the twentieth century, glaucoma was divided into two broad categories based upon its clinical presentation. Congestive, or inflammatory, glaucoma was characterized by conjunctival hyperemia and corneal edema, often accompanied by pain, and was divided into acute and chronic forms. Noncongestive glaucoma was characterized by a quiet eye and included both chronic open-­ angle glaucoma and chronic angle-closure glaucoma. In 1856, von Graefe performed the first successful large surgical sector irid