Ophthalmologica
Original Paper
Application of Erbium: YAG Laser in Ocular AblationTsubota K.Department of Ophthalmology National Tochigi Hospital, Tochigi, and Keio University School of Medicine, Tokyo, Japan
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Article / Publication Details
Received: August 11, 1989
Accepted: August 24, 1989
Published online: March 31, 2010
Issue release date: 1990
Number of Print Pages: 6
Number of Figures: 0
Number of Tables: 0
ISSN: 0030-3755 (Print)
eISSN: 1423-0267 (Online)
For additional information: https://www.karger.com/OPH
Abstract
Recent developments in lasers have provided us the possibility of laser ocular surgery. The xenon, argon, neodium:YAG and dye lasers have been successfully used in outpatient clinicas. The excimer laser has been attracting researchers’ interest in the new application of laser to cornea and lens. The erbium: YAG laser emits a 2.94-µm beam that can ablate the transparent ocular tissues such as lenses and corneas. The author has applied this laser to the cornea, lens, vitreous and other ocular tissues. The erbium:YAG laser beam was directed through a 1.5-meter-long, 200-µm-diameter fiberoptic guide. The radiant energy measured about 50 mJ at the end of the probe. The laser was emitted as a 400-µs pulse. Freshly enucleated rabbit eyes were used in this study. Laser burns were applied to the tissue surface at various energy settings. At minimal power, the tissues were coagulated by the erbium: YAG laser application. At a power of more than 636–954 mJ/mm2, tissue began to evaporate; the tissue loss was observed under a surgical light microscope. Corneal photoablation, lens ablation, iridotomy, trabeculotomy, cutting of the vitreous and retinal ablation were easily performed. Like the excimer laser, the erbium: YAG laser is a potential tool for ocular surgery.
© 1990 S. Karger AG, Basel
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Article / Publication Details
Received: August 11, 1989
Accepted: August 24, 1989
Published online: March 31, 2010
Issue release date: 1990
Number of Print Pages: 6
Number of Figures: 0
Number of Tables: 0
ISSN: 0030-3755 (Print)
eISSN: 1423-0267 (Online)
For additional information: https://www.karger.com/OPH
Copyright / Drug Dosage / Disclaimer
Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher.Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
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