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Techniques To Improve Visual Performance Following Corneal Surgery
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Book Synopsis Techniques to Improve Visual Performance Following Corneal Surgery by : Ferdinand Antonius Gerardus Johannes Eggink
Download or read book Techniques to Improve Visual Performance Following Corneal Surgery written by Ferdinand Antonius Gerardus Johannes Eggink and published by . This book was released on 2001 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Corneal Shape and Visual Performance After Keratorefractive Surgery by :
Download or read book Corneal Shape and Visual Performance After Keratorefractive Surgery written by and published by . This book was released on 2002 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keratorefractive surgery includes any corneal surgery designed to modify the refractive state of the eye. Changes in corneal shape have been associated with changes in the aberration structure of the eye, specifically an increase in spherical aberration. The purpose of this study was to evaluate visual performance after refractive surgery, how the cornea changes in terms of clarity and shape, and how these changes relate to visual performance. The procedures evaluated in this study included photorefractive keratectomy (PRK), astigmatic PRK (PARK), laser in-situ keratomileusis (LASIK), and intrastromal corneal ring segments (ICRS). Corneal shape changes were analyzed using the point spread function of the anterior cornea, standard topographic indices and newly developed indices based on the refractive power distribution of the corneal surface. Performance on the high contrast visual acuity (HCVA) test and contrast sensitivity on the Small Letter Contrast Test (SLCT) both decreased after refractive surgery. The impact of refractive surgery on SLCT performance was more significant than for HCVA performance, potentially because the SLCT has a sampling advantage over HCVA. Corneal factors that correlated with the amount of performance decrement included transient corneal haze after surface excimer procedures, the range of powers of the central cornea, and changes in the optical quality of the cornea. The amount of correction, size of the pupil, and type of procedure were additional factors contributing to the quality of vision. The best results are obtained when the refractive correction was well centered, the corneal surface had a uniform and minimal power distribution, no subepithelial haze was present and the pupil was small.
Book Synopsis High Performance Vision by : Donald S. Teig, Dr.
Download or read book High Performance Vision written by Donald S. Teig, Dr. and published by Square One Publishers, Inc.. This book was released on 2021-07-12 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beyond physical superiority, mental stamina, and smart play, most of the world’s best athletes possess another specific advantage that gives them an edge. We’re not talking about performance-enhancing drugs or blood doping, but something a lot more natural—good vision. Being able to follow a fastball as it flies over home plate, judge the shooting distance to a basketball hoop, or leap in the air to catch that spiraling football at just the right moment all depend on good eyesight. And maximizing one’s vision can make all the difference between a good player and a great one. While wearing corrective lenses is certainly one way to sharpen visual acuity, it isn’t the only one. In his new book, High Performance Vision, sports-vision specialist Dr. Donald Teig, shares his highly successful approach to visual enhancement. During his work with professional athletes over the past forty years, Dr. Teig developed a series of visual and visual-motor performance tests to determine the strengths and weaknesses of their eyesight. After establishing an initial baseline of test results, the athletes were given specific exercises designed to improve their visual skills. He then tested them again and measured the results against the baseline. With each succession of exercises, their sight and motor coordination improved, as did their performance on the playing field. In High Performance Vision, Dr. Teig details his unique approach and offers his highly effective exercise regimen for improving your own vision. If you’ve been looking for safe, natural way to improve your game, High Performance Vision offers the perfect solution. In a clear and reader-friendly style, it shows you how to gain the edge that many pros have used for years.
Book Synopsis Corneal Shape and Visual Performance After Keratorefractive Surgery by : Corina VAN DE Pol
Download or read book Corneal Shape and Visual Performance After Keratorefractive Surgery written by Corina VAN DE Pol and published by . This book was released on 2002-05 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keratorefractive surgery includes any corneal surgery designed to modify the refractive state of the eye. Changes in corneal shape have been associated with changes in the aberration structure of the eye, specifically an increase in spherical aberration. The purpose of this study was to evaluate visual performance after refractive surgery, how the cornea changes in terms of clarity and shape, and how these changes relate to visual performance. The procedures evaluated in this study included photorefractive keratectomy (PRK), astigmatic PRK (PARK), laser in-situ keratomileusis (LASIK), and intrastromal corneal ring segments (ICRS). Corneal shape changes were analyzed using the point spread function of the anterior cornea, standard topographic indices and newly developed indices based on the refractive power distribution of the corneal surface. Performance on the high contrast visual acuity (HCVA) test and contrast sensitivity on the Small Letter Contrast Test (SLCT) both decreased after refractive surgery. The impact of refractive surgery on SLCT performance was more significant than for HCVA performance, potentially because the SLCT has a sampling advantage over HCVA. Corneal factors that correlated with the amount of performance decrement included transient corneal haze after surface excimer procedures, the range of powers of the central cornea, and changes in the optical quality of the cornea. The amount of correction, size of the pupil, and type of procedure were additional factors contributing to the quality of vision. The best results are obtained when the refractive correction was well centered, the corneal surface had a uniform and minimal power distribution, no subepithelial haze was present and the pupil was small.
Book Synopsis Corneal Surgery by : Frederick S. Brightbill
Download or read book Corneal Surgery written by Frederick S. Brightbill and published by Elsevier Health Sciences. This book was released on 2009-01-01 with total page 970 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part. 1 Introduction to corneal function and surgery -- Part. 2 Testing and measuring corneal function -- Part. 3 Ocular surface surgery and reconstruction -- Part. 4 Techniques in corneal transplantation -- Part. 5 Special situations in corneal surgery -- Part. 6 Surgical correction of refractive errors.
Book Synopsis Corneal Shape and Visual Performance After Keratorefractive Surgery by : Corina Van De Pol
Download or read book Corneal Shape and Visual Performance After Keratorefractive Surgery written by Corina Van De Pol and published by . This book was released on 1999 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Visual Impairment and Blindness by : Giuseppe Lo Giudice
Download or read book Visual Impairment and Blindness written by Giuseppe Lo Giudice and published by BoD – Books on Demand. This book was released on 2020-09-09 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Blindness and vision impairment affect at least 2.2 billion people worldwide with most individuals having a preventable vision impairment. The majority of people with vision impairment are older than 50 years, however, vision loss can affect people of all ages. Reduced eyesight can have major and long-lasting effects on all aspects of life, including daily personal activities, interacting with the community, school and work opportunities, and the ability to access public services. This book provides an overview of the effects of blindness and visual impairment in the context of the most common causes of blindness in older adults as well as children, including retinal disorders, cataracts, glaucoma, and macular or corneal degeneration.
Book Synopsis Corneal Regeneration by : Jorge L. Alió
Download or read book Corneal Regeneration written by Jorge L. Alió and published by Springer. This book was released on 2019-02-20 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text provides expert instruction on the varying surgical techniques currently employed for the regeneration of the ocular surface. Corneal Regeneration: Therapy and Surgery begins with a thorough discussion of current research based on data obtained in clinical human studies, and discusses the potential clinical implications for this promising new stage of eye surgery. Sections devoted to the stem cell, regenerative surgery and therapy of the ocular surface epithelium, corneal stroma, and corneal endothelium follow, each section comprehensively covering applied anatomy, current therapy and regenerative techniques, with a look to future directions of the field including eventual cell therapy. Corneal Regeneration: Therapy and Surgery is the first book of its kind, systematically covering the developments the medical community has achieved in corneal regeneration from all angles. Written and edited by leading experts in the field, researchers and ophthalmologists alike will find this to be a unique source of information on corneal regeneration, as well as a thoughtful reflection on potential applications of regenerative surgery in ophthalmology as a whole.
Download or read book DSEK written by Francis W. Price and published by SLACK Incorporated. This book was released on 2009 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: "DSEK: What You Need to Know About Endothelial Keratoplasty provides a comprehensive background of EK, where it is today, and where it is headed in the future. Francis W. Price, MD. who was the first to complete DSEK in the United States, along with Marianne Price, PhD, have designed this text to offer a special emphasis on how to perform surgeries along with preventing and managing complications. In addition, a diverse group of contributing authors provides a wide array of insights and tips for better patient outcomes."--BOOK JACKET.
Book Synopsis Current Cataract Surgical Techniques by : Xiaogang Wang
Download or read book Current Cataract Surgical Techniques written by Xiaogang Wang and published by BoD – Books on Demand. This book was released on 2021-07-07 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first clinical application of the phacoemulsification cataract surgical technique (often referred to as “phaco”) was introduced in 1967 by Dr. Charles Kelman. This innovation is a big step forward for cataract surgery. With the development of intraocular lens (IOL) design, more and more premium presbyopia- and astigmatism-correction IOLs are being used in clinics. This progress has greatly improved the visual quality of cataract patients. This book discusses the basic surgical skills required to perform this procedure, premium IOL surgical design, specific surgical plans for clinically challenging cases, and more. It provides readers with a comprehensive knowledge of the current state of the art of cataract surgery and surgical design.
Book Synopsis Cataract and Refractive Surgery by : Thomas Kohnen
Download or read book Cataract and Refractive Surgery written by Thomas Kohnen and published by Springer Science & Business Media. This book was released on 2006-01-14 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: -Cataract surgery is the most frequently performed surgical intervention worldwide, and the number of refractive surgery procedures, such as LASIK, is growing rapidly -All editors are internationally known experts in the field -Well structured text and design, quick and easy to read -Bridges the gap between primary literature and daily practice, indispensable for continuous education and advanced training -Every 2nd year each volume is updated to include timely information about new developments
Book Synopsis Optometry: Science, Techniques and Clinical Management E-Book by : Mark Rosenfield
Download or read book Optometry: Science, Techniques and Clinical Management E-Book written by Mark Rosenfield and published by Elsevier Health Sciences. This book was released on 2009-07-06 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to the theory and practice of optometry in one succinct volume. From the fundamental science of vision to clinical techniques and the management of common ocular conditions, this book encompasses the essence of contemporary optometric practice. Now in full colour and featuring over 400 new illustrations, this popular text which will appeal to both students and practitioners wishing to keep up to date has been revised significantly. The new edition incorporates recent advances in technology and a complete overview of clinical procedures to improve and update everyday patient care. Contributions from well-known international experts deliver a broad perspective and understanding of current optometric practice. A useful aid for students and the newly qualified practitioner, while providing a rapid reference guide for the more experienced clinician. Comprehensive and logical coverage detailing the full spectrum of optometric practice in one volume. Succinctly covers the basics of anatomy, physiology, pharmacology, investigative techniques and clinical management of common eye conditions to provide key topics likely to be met in clinical practice. Discusses the full range of refractive correction, from spectacles and contact lenses to surgical treatment. Includes chapters on the management of special populations, including paediatric, elderly, low vision and special needs patients. Heavily illustrated throughout with key diagrams and images to support the text. Complete restructuring of contents into three sections: basic sciences, clinical techniques and patient management. Full colour throughout with over 400 illustrations. Many new chapters reflecting the changes in optometric practice and technology over the last 20 years, including new imaging and diagnostic procedures and methods of ocular treatment and refractive correction. Now includes internationally renowned authors from around the world. Details a full range of refractive and management approaches for patient care.
Book Synopsis A Complete Surgical Guide for Correcting Astigmatism by : Bonnie An Henderson
Download or read book A Complete Surgical Guide for Correcting Astigmatism written by Bonnie An Henderson and published by SLACK Incorporated. This book was released on 2011 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Manual Small Incision Cataract Surgery by : Bonnie An Henderson
Download or read book Manual Small Incision Cataract Surgery written by Bonnie An Henderson and published by Springer. This book was released on 2016-01-11 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, in a concise format, explains how to perform manual small incision cataract surgery. The procedure is broken down into the chief elements and described in a step by step manner. Besides the description of the procedure, the book covers indications, necessary supplies, preparation, complication management, and postoperative care. The authors are experts from around the world, and the book will be of value both for surgeons new to this technique and for experienced surgeons who need a review of the procedure. While phacoemulsification surgery has now become the standard of care, understanding how to perform manual extracapsular cataract extractions competently is crucial when faced with complications during phacoemulsification surgery, when operating in a region of the world without access to phacoemulsification or femtosecond lasers, or when a manual approach may be a better choice for the patient.
Book Synopsis Handbook of Visual Optics, Volume Two by : Pablo Artal
Download or read book Handbook of Visual Optics, Volume Two written by Pablo Artal and published by CRC Press. This book was released on 2017-02-24 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Visual Optics offers an authoritative overview of encyclopedic knowledge in the field of physiological optics. It builds from fundamental concepts to the science and technology of instruments and practical procedures of vision correction, integrating expert knowledge from physics, medicine, biology, psychology, and engineering. The chapters comprehensively cover all aspects of modern study and practice, from optical principles and optics of the eye and retina to novel ophthalmic tools for imaging and visual testing, devices and techniques for visual correction, and the relationship between ocular optics and visual perception.
Book Synopsis Multifocal Intraocular Lenses by : Jorge L. Alió
Download or read book Multifocal Intraocular Lenses written by Jorge L. Alió and published by Springer Nature. This book was released on 2019-08-30 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive 2nd edition will build on the highly successful first edition, providing an updated global perspective of the fundamentals of multifocal intraocular lenses. The varying outcomes, limitations, and the neuroadaptation process necessary for an adequate clinical success are thoroughly discussed, along with an overview of the different types of multifocal lenses, including the recently developed extended depth of focus lenses. Multifocal Intraocular Lenses: The Art and the Practice, 2nd edition opens with an introduction that will delve into current technological offerings for the correction of pseudophakic presbyopia, as well as the opportunity for refractive lens exchange in advanced presbyopic ages and the opportunity to use these lenses. The first section will include the historical background and clinical indications, while section two addresses the varying types and models of lenses currently available, including important clinical and technological highlights. Section three and four will follow, and provide an extended look at the Zeiss and Alcon Family Multifocal IOL’s. Section five will delve into extended depth of field lenses, and will contain an introduction about the concept, different models and the evidence available about their outcomes. Section six concludes the book, closely examining accommodative intraocular lenses, and a full update will be provided on these lenses, the failures of the past and the hopes for the future. Multifocal Intraocular Lenses: The Art and the Practice, 2nd edition is a thorough, resource for the practical ophthalmologist and ophthalmic surgeon interested in learning more about intraocular lenses, identifying the best technologies and lenses for the benefit of their patients.
Book Synopsis Master Techniques in Ophthalmic Surgery by : Frederick Hampton Roy
Download or read book Master Techniques in Ophthalmic Surgery written by Frederick Hampton Roy and published by JP Medical Ltd. This book was released on 2015-04-30 with total page 1185 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master Techniques in Ophthalmic Surgery covers all topics related to ophthalmic surgery in 149 chapters. This comprehensive book includes significant sections on various structures of the visual system, covering anterior chamber, choroid, conjunctiva, cornea, globe, iris and ciliary body, lacrimal system, lens, optical nerve, orbit, sclera and vitreous. The most extensive sections of this book concern the extraocular muscles, eyelids and retina, providing detailed information on multidisciplinary aspects. Master Techniques in Opthalmic Surgery is an essential reference for all practitioners, providing diagnoses and indications for surgery, surgical techniques, outcomes and references for a variety of ophthalmic conditions. Key Features Extensive coverage of every ophthalmic surgery technique over 1000 pages Each section covers part of the anatomical structure of the eye in detail 1116 full colour images Authored by renowned US ophthalmologist Frederick Hampton Roy
