Irregular Astigmatism PDF Download
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Author: Tracy Schroeder Swartz
Publisher: SLACK Incorporated
ISBN: 9781556428395
Category : Medical
Languages : en
Pages : 326
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Book Description
Since the advent of keratorefractive surgery and its rising popularity, irregular astigmatism has become an increasingly important issue for ophthalmologists and optometrists. Despite the success of LASIK and PRK, there are more and more patients experiencing visual quality problems due to the non-physiological modification of the corneal structure. Among these complications, irregular astigmatism is perhaps the most difficult to treat. Every physician who performs keratorefractive surgery understands that in reducing a patient.s refractive error, there is a possibility of creating irreversible effects on visual quality. This text is intended to help prevent and reduce the iatrogenic creation of irregular astigmatism, as well as provide effective treatment when postoperative complications do arise. With the maturation of keratorefractive technology in recent years, effective treatment for iatrogenic irregular astigmatism is quickly developing. It provides everything refractive surgeons, ophthalmologists, and optometrists need to know about this important topic.
Author: Tracy Schroeder Swartz
Publisher: SLACK Incorporated
ISBN: 9781556428395
Category : Medical
Languages : en
Pages : 326
Get Book Here
Book Description
Since the advent of keratorefractive surgery and its rising popularity, irregular astigmatism has become an increasingly important issue for ophthalmologists and optometrists. Despite the success of LASIK and PRK, there are more and more patients experiencing visual quality problems due to the non-physiological modification of the corneal structure. Among these complications, irregular astigmatism is perhaps the most difficult to treat. Every physician who performs keratorefractive surgery understands that in reducing a patient.s refractive error, there is a possibility of creating irreversible effects on visual quality. This text is intended to help prevent and reduce the iatrogenic creation of irregular astigmatism, as well as provide effective treatment when postoperative complications do arise. With the maturation of keratorefractive technology in recent years, effective treatment for iatrogenic irregular astigmatism is quickly developing. It provides everything refractive surgeons, ophthalmologists, and optometrists need to know about this important topic.
Author: Michael Goggin
Publisher: BoD – Books on Demand
ISBN: 9535102303
Category : Medical
Languages : en
Pages : 322
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Book Description
This book explores the development, optics and physiology of astigmatism and places this knowledge in the context of modern management of this aspect of refractive error. It is written by, and aimed at, the astigmatism practitioner to assist in understanding astigmatism and its amelioration by optical and surgical techniques. It also addresses the integration of astigmatism management into the surgical approach to cataract and corneal disease including corneal transplantation.
Author: Reuben Buckley
Publisher: Nova Science Publishers
ISBN: 9781633219786
Category : Medical
Languages : en
Pages : 0
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Book Description
Astigmatism is an optical aberration characterized by rays propagating into two perpendicular planes focusing at different distances, thus providing two different foci delimiting an intermediate area of focus called the Conoid of Sturm. This book discusses the types, diagnosis and treatment options of astigmatism. The topics include management of astigmatism in patients after a corneal transplant; power vectors; toric intraocular lenses for the correction of astigmatism during cataract surgery; irregular astigmatism management; and a comprehensive overview of preexisting astigmatism during phacoemulsification.
Author: Frederick Bloom
Publisher: Bookbaby
ISBN: 9781098357948
Category :
Languages : en
Pages : 38
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Book Description
This unique alphabet teaching book focuses your children on the fascinating world of optometry. Sight is one of the 5 senses humans have, and this book will teach your children all about it, while introducing them to the alphabet. Do you have a child that is learning the alphabet or a young one who is interested in anatomy? This is just the book for you! "A is for Astigmatism" is perfect for children age 1 to 10, who are interested in the ABC's of vision and optics.
Author: Bonnie An Henderson
Publisher: SLACK Incorporated
ISBN: 1556429355
Category : Medical
Languages : en
Pages : 274
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Book Description
As the fields of cataract surgery and refractive surgery merge, the expectations of patients for perfect postoperative uncorrected vision are increasing. This book offers cataract and refractive surgeons a single comprehensive resource on diagnosing and managing corneal astigmatism. Not only is surgical management addressed in this updated edition, but diagnosis of astigmatism is presented with specific attention to new technology and innovative techniques. Also included are more than 200 color images and 35 tables throughout the pages of this book brings together the world's experts in cataract and refractive surgery, making it a must-have resource for every surgeon aspiring to successfully manage and treat patients with astigmatism.
Author: Jean-Luc Febbraro
Publisher: Springer
ISBN: 3319565656
Category : Medical
Languages : en
Pages : 189
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Book Description
This book reviews the surgical techniques currently employed for the management of astigmatism, with the aim of providing a clear, comprehensive, step-by-step guide that will help practitioners to optimize outcomes. The book is divided into two sections covering the cutting-edge surgical approaches in cataract and refractive patients. Renowned experts with many years of clinical experience describe options such as incisional techniques, toric intraocular lenses, femtosecond and excimer laser technology. In addition, guidance is offered on preoperative evaluation of astigmatism, candidate identification and classification, and surgical management following penetrating keratoplasty. Supplementary videos of informative sample cases are included to further aid everyday practice.
Author: Noel Alpins
Publisher: CRC Press
ISBN: 1040140009
Category : Medical
Languages : en
Pages : 241
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Book Description
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: Dmitri T Azar
Publisher: Jaypee Brothers Medical Publishers
ISBN: 9389188857
Category : Medical
Languages : en
Pages : 335
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Book Description
Astigmatism means the eye is shaped like a rugby ball so light is focused at more than one place in the eye. It is associated with short or long sightedness and can cause blurry vision, headaches and eye strain. Astigmatism is usually corrected with glasses or contact lenses. This book is a complete guide to the surgical management of astigmatism. Based on scientific evidence and practice, the text covers numerous diagnostic and treatment techniques for both regular and irregular astigmatism, including laser surgery and incisional and intraocular lenses. Each procedure is explained in detail describing new diagnostic technologies, patient selection, methods and limitations across applications. Authored by an internationally recognised team of experts, the comprehensive text is further enhanced by more than 350 clinical photographs, diagrams and figures. Key points Complete guide to surgical management of astigmatism Covers techniques for both regular and irregular astigmatism including laser surgery Internationally recognised team of expert authors Highly illustrated with clinical photographs, diagrams and figures
Author: Dr. Spineanu Eugenia
Publisher: Dr. Spineanu Eugenia
ISBN:
Category : Medical
Languages : en
Pages : 121
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Book Description
Are you ready to see the world with clear vision? Dive into the essential guide on astigmatism, a common yet often misunderstood condition affecting millions. IN-DEPTH EXPLANATION OF ASTIGMATISM: Discover what causes this visual imperfection and how it differs from other refractive errors. HISTORICAL CONTEXT: Follow the fascinating journey of astigmatism's discovery and the milestones in its understanding and treatment. EVIDENCE-BASED TREATMENT OPTIONS: Learn about various corrective measures, from prescription glasses to advanced laser surgeries. RISK FACTORS & PREVENTION: Understand genetic and environmental influences on astigmatism and tips for managing visual health. GLOBAL PERSPECTIVES & PUBLIC HEALTH INSIGHT: See how astigmatism impacts different demographics and the importance of accessible eye care. This book is a comprehensive resource, designed to provide clarity for patients, healthcare professionals, and curious minds alike, emphasizing prevention, early diagnosis, and effective treatments to maintain optimal vision.
Author:
Publisher: ScholarlyEditions
ISBN: 1464910928
Category : Medical
Languages : en
Pages : 28
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Book Description
Astigmatism: New Insights for the Healthcare Professional: 2011 Edition is a ScholarlyPaper™ that delivers timely, authoritative, and intensively focused information about Astigmatism in a compact format. The editors have built Astigmatism: New Insights for the Healthcare Professional: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Astigmatism in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Astigmatism: New Insights for the Healthcare Professional: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
