Practical Astigmatism

Author : Noel Alpins
Publisher : CRC Press
Page : 241 pages
File Size : 48,7 Mb
Release : 2024-06-01
Category : Medical
ISBN : 9781040140000

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Practical Astigmatism by Noel Alpins Pdf

The surgical correction of astigmatism is the last frontier to optimizing visual outcomes for patients. Practical Astigmatism: Planning and Analysis is a comprehensive guide to correcting astigmatism from pre-operative planning to post-operative analysis. This provides readers with unique insight to what actually happened surgically: did the astigmatism over or under correct? Was it on-axis or off-axis? With this book, ophthalmologists will be able to analyze previous procedures with the appropriate nomograms and more often achieve targeted outcomes. Dr. Noel Alpins has developed the Alpins Method of astigmatism to provide accurate planning and analysis of astigmatism procedures. His method focuses on analyzing refractive and corneal astigmatism parameters and using the results in future surgery to improve visual outcomes. The importance of the ocular residual astigmatism (ORA) is detailed when planning astigmatism surgery. Practical Astigmatism features vector planning for refractive laser surgery as well as planning and analysis applied to cataract and limbal relaxing incisions, , in addition to demonstrating graphical analysis of astigmatism using high quality vector and fan diagrams, as used in scientific journals. In addition, hemidivisional analysis of the irregular cornea, corneal coupling in incisional and excimer laser surgery for mixed astigmatism and toric IOL planning with total corneal power using corneal topographic astigmatism (CorT total) are addressed as well. Some Questions Answered Inside: What is the difference between regular and irregular astigmatism? How do I diagnose each, and how does this affect my surgical technique? Can I incorporate corneal astigmatism when performing excimer laser surgery? Why are my LRIs undercorrecting the astigmatism? Is it safe to perform excimer laser on keratoconous patients? Which corneal astigmatism measure do I choose and what do I do following a refractive surprise? Practical Astigmatism: Planning and Analysis will help ophthalmologists, optometrists, and technicians alike address each patient’s unique circumstances and act as your in-depth guide to correcting astigmatism. Testimonials... “For more than three decades I have been listening to, arguing with, and admiring the work of Dr. Noel Alpins in the field of astigmatism. Despite his remote location on the small island of Australia, his knowledge of astigmatism is at the peak of Mt. Everest. There are few others who have devoted their careers to understanding and managing astigmatism for which the world of ophthalmology is truly grateful.” - Robert H. Osher, MD “Noel is an original thinker who took on and conquered the complexities of astigmatism analysis, publishing the seminal papers on the way. His work has formed the cornerstone from which our current understanding and management of astigmatism has been built. He is someone from whom we have all learnt a great deal and this book is a testament to this.” - Dan Z Reinstein, MD MA(Cantab) FRCSC DABO FRCOphth FEBO

Author : Swan Moses Burnett
Publisher : Unknown
Page : 274 pages
File Size : 47,5 Mb
Release : 1887
Category : Astigmatism
ISBN : STANFORD:24500622912

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A Theoretical and Practical Treatise on Astigmatism by Swan Moses Burnett Pdf

Author : Elias Traboulsi,Virginia Utz
Publisher : Springer
Page : 822 pages
File Size : 42,9 Mb
Release : 2016-07-27
Category : Medical
ISBN : 9781493927456

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Practical Management of Pediatric Ocular Disorders and Strabismus by Elias Traboulsi,Virginia Utz Pdf

This case-based approach to the management of pediatric eye diseases and strabismus teaches the novice, as well as the experienced surgeon, how to conceptualize and analyze surgical planning to maximize patient outcomes, allowing readers to “get inside the head of the surgeon.” Individual cases with clear instructions and an abundance of color illustrations, presented by experts in the field, teach critical information one case at a time. Practical Management of Pediatric Ocular Disorders and Strabismus provides the key guiding principles of a traditional textbook in an easy-to-digest format. Each chapter of the text tackles a common or rare clinical situation and begins with the description of an illustrative case. The chapters are structured with sections on case description, differential diagnosis, management and outcomes with a list of possible complications and the approach to their management.

Author : Luther L. Fry,Ashok Garg,Francisco Guitérrez-Camona,Suresh K. Pandey,Geoffrey Tabin
Publisher : CRC Press
Page : 664 pages
File Size : 48,5 Mb
Release : 2004-10-14
Category : Medical
ISBN : 0203311825

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Clinical Practice in Small Incision Cataract Surgery by Luther L. Fry,Ashok Garg,Francisco Guitérrez-Camona,Suresh K. Pandey,Geoffrey Tabin Pdf

Cataract is currently the main cause of avoidable blindness in the developing world and accounts for about 75% of cases worldwide. Small incision manual techniques for cataract surgery, as described in this book, should be in the armamentarium of every cataract surgeon, whether it be in the United States or less affluent countries. Phacoemulsificat

Author : Edward Jackson
Publisher : Unknown
Page : 124 pages
File Size : 45,7 Mb
Release : 1896
Category : Eye
ISBN : HARVARD:HC4QJN

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Skiascopy and Its Practical Application to the Study of Refraction by Edward Jackson Pdf

Author : Swan Moses Burnett
Publisher : Rarebooksclub.com
Page : 70 pages
File Size : 55,9 Mb
Release : 2013-09
Category : Electronic
ISBN : 1230085157

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A Theoretical and Practical Treatise on Astigmatism by Swan Moses Burnett Pdf

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1887 edition. Excerpt: ...hand, the lens is brought very close to the cornea, the horizontal (emmetropic) diameter remains unaltered, while the vertical (myopic) diameter gradually diminishes in size, assuming finally, if sufficiently close, a horizontal oval form. 119. In compound myopic astigmatism, we have, in accordance with the facts just stated, a general progressive enlargement of the disk on removal of the lens.with a greater enlargement and drawing out of that diameter of the disk corresponding to the meridian most strongly myopic, while there is a greater shortening of the same diameter when the lens is brought very close to the cornea. 120. We have, of course, an entirely different set of VPPEARANCE OF THE FUNDUS BY THE INDIRECT METHOD. IO7 cnanges in hypermetropic astigmatism. Example: As the lens is withdrawn from the eye, the vertical diameter remains essentially unchanged, while the horizontal diameter, corresponding to the hypermetropic meridian, becomes more and more contracted. Diagnosis: Simple hypermetropic astigmatism, axis vertical. 121. In compound hypermetropic astigmatism there is, on withdrawal of the lens, a narrowing of the disk in all its diame Appearance Of The Fundus Of An Eye With Mixed Astigmatism, When The Auxiliary Lens Is Held Close To The Cornea. ters, but it is more rapid in the diameter corresponding to the most hypermetropic meridian. The result is an oval with its short diameter in the direction of the meridian of least refraction, the same as in the myopic forms, but it is produced in a diametrically opposite manner. In the hypermetropic forms it is the result of contraction in the faulty meridian; in the myopic forms it is due to enlargement in the direction of the faulty meridian. 122. The most...

Author : Swan Moses Burnett
Publisher : Unknown
Page : 260 pages
File Size : 53,8 Mb
Release : 2018-02-11
Category : Electronic
ISBN : 3337451470

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A Theoretical and Practical Treatise on Astigmatism by Swan Moses Burnett Pdf

Author : Edward Swift Dunster,James Bradbridge Hunter,Frank Pierce Foster,Charles Eucharist de Medicis Sajous,Gregory Stragnell,Henry J. Klaunberg,Félix Martí-Ibáñez
Publisher : Unknown
Page : 872 pages
File Size : 40,9 Mb
Release : 1895
Category : Electronic
ISBN : OSU:32436001234481

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International Record of Medicine and General Practice Clinics by Edward Swift Dunster,James Bradbridge Hunter,Frank Pierce Foster,Charles Eucharist de Medicis Sajous,Gregory Stragnell,Henry J. Klaunberg,Félix Martí-Ibáñez Pdf

Author : Guy Kleinmann,Ehud I. Assia ,David J. Apple
Publisher : Bentham Science Publishers
Page : 331 pages
File Size : 51,7 Mb
Release : 2014-05-08
Category : Medical
ISBN : 9781608058327

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Premium and Specialized Intraocular Lenses by Guy Kleinmann,Ehud I. Assia ,David J. Apple Pdf

This eBook is a review on the state-of-the-art knowledge on currently available premium intraocular lenses. The volume covers a variety of intraocular lenses including multifocal, accommodative, aspheric, and toric versions and special intraocular biodevices such as intraocular telescopes. Details regarding their features, indications, contraindications and clinical results are also discussed based on evidence based / peer reviewed data. This eBook serves as a brief reference for optometry professionals seeking updates about high quality lenses for eye patients.

Author : Henry Chapman Jones
Publisher : Unknown
Page : 348 pages
File Size : 51,7 Mb
Release : 1895
Category : Photography
ISBN : NYPL:33433072091956

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An Introduction to the Science & Practice of Photography by Henry Chapman Jones Pdf

Author : Edward S. Bennett,Barry A. Weissman
Publisher : Lippincott Williams & Wilkins
Page : 1102 pages
File Size : 51,6 Mb
Release : 2005
Category : Medical
ISBN : 0781737052

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Clinical Contact Lens Practice by Edward S. Bennett,Barry A. Weissman Pdf

This comprehensive text and reference addresses the full scope of contemporary contact lens science and practice. With two expert editors and 100 first-rate contributors, the book presents practitioners and students in optometry and ophthalmology with key facts on corneal anatomy, recent research, contact lens design, patient evaluation, clinical applications, patient education, and complications of contact lens wear. More than 600 illustrations complement the text. Clinical Contact Lens Practice will be the standard text for required contact lens courses and will be an invaluable everyday reference for practitioners.

Author : Samuel Boyd,Benjamin F Boyd
Publisher : JP Medical Ltd
Page : 338 pages
File Size : 42,5 Mb
Release : 2013-07-30
Category : Medical
ISBN : 9789962678625

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New Trends in Ophthalmology: Medical and Surgical Management by Samuel Boyd,Benjamin F Boyd Pdf

New Trends in Ophthalmology presents ophthalmologists with the most recent technological developments in this rapidly advancing field. Each chapter explains current diagnosis and medical and surgical management of different ocular disorders and diseases, including cataract surgery, glaucoma treatment and lens implant surgery. Presented in an easy to follow format, this comprehensive manual is enhanced by nearly 400 clinical photographs, diagrams and tables. Key points Comprehensive guide to latest technological developments in ophthalmology Presents medical and surgical management of numerous ocular diseases and disorders Internationally recognised author and editor team, predominantly from Europe and the USA Includes nearly 400 full colour clinical photographs, diagrams and tables

Author : Ian M. Watt
Publisher : Cambridge University Press
Page : 506 pages
File Size : 42,9 Mb
Release : 1997-01-30
Category : Science
ISBN : 0521435919

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The Principles and Practice of Electron Microscopy by Ian M. Watt Pdf

The first edition of this book was widely praised as an excellent introduction to electron microscopy for materials scientists, physicists, earth and biological scientists. This completely revised new edition contains expanded coverage of existing topics and much new material. The author presents the subject of electron microscopy in a readable way, open both to those inexperienced in the technique, and also to practising electron microscopists. The coverage has been brought completely up to date, whilst retaining descriptions of early classic techniques. Currently live topics such as computer control of microscopes, energy-filtered imaging, cryo- and environmental microscopy, digital imaging, and high resolution scanning and transmission microscopy are all described. The highly praised case studies of the first edition have been expanded to include some interesting new examples. This indispensable guide to electron microscopy, written by an author with thirty years practical experience, will be invaluable to new and experienced electron microscopists in any area of science and technology.

Author : Swan M 1847-1906 Burnett
Publisher : Palala Press
Page : 264 pages
File Size : 53,5 Mb
Release : 2016-05-11
Category : Electronic
ISBN : 1356326846

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A Theoretical and Practical Treatise on Astigmatism by Swan M 1847-1906 Burnett Pdf

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Author : Swan M. Burnett
Publisher : Unknown
Page : 256 pages
File Size : 46,5 Mb
Release : 2015-07-22
Category : Science
ISBN : 1331970253

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Theoretical and Practical Treatise on Astigmatism (Classic Reprint) by Swan M. Burnett Pdf

Excerpt from Theoretical and Practical Treatise on Astigmatism The addition of one more medical book - even though it be a small one - to the scores that are annually issued from the press, carries with it a demand, on the part of the reading public, for its raison d'etre. The cause of the existence of this little work has its foundation in my own needs as developed in my studies of refractive anomalies, and in my conception of the needs of others as manifested to me during the last eight years as a teacher of general and special students and general practitioners. An examination into the statistics of eye-affections shows that the various anomalies of refraction form about one-third of the whole number of eye cases presenting themselves for treatment in private practice, and of these two-thirds, or about 20% of the whole, suffer from astigmatism in an appreciable degree. No one, then, I think, will deny to astigmatism the worth of a treatise special to itself, particularly when there is taken into consideration the great difficulty encountered in clearing away the perplexities, uncertainties and paradoxical manifestations which enshroud many cases of the anomaly, and which are the despair of the beginner in refraction studies. And, while fully aware that Time and Patience are two most important and indispensible factors in unraveling the tangled threads of evidence, it cannot be doubted that nowhere in the whole range of medical practice, is accurate knowledge, based on positive science, of such avail as in the diagnosis of astigmatism. To lead to such accurate knowledge through the paths of positive science has been the chief incentive to my labor. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.