Download or read book Corneal Collagen Cross link Therapy for Keratoconus written by Joren Bonderud and published by . This book was released on 2017 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keratoconus is a corneal condition that affects 1 in 2000 people. It causes symptoms including blurry, distorted, and irregular vision that cannot be fully corrected by traditional glasses. Patients with this condition can suffer a decrease in the quality of their life, depending on the severity and progression of the disease. In severe cases, a corneal transplant is needed which can be dangerous, expensive, and ultimately unsuccessful. Corneal Collagen Cross-linking is a procedure that involves treating the eye with topical Riboflavin (Vitamin B2) and Ultraviolet light in order to strengthen the thinning corneal tissue. This procedure has given eye professionals hope for reducing the need for corneal transplants. Also, there is evidence that this procedure can reduce the incidence of severe complications. The information in this literature review is provided by the tireless effort of researchers from 1998 until the present.
Download or read book Corneal Collagen Cross Linking written by Mazen M. Sinjab and published by Springer. This book was released on 2016-11-09 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides comprehensive coverage of corneal collagen cross-linking (CXL), a major management modality for keratoconus and ectatic corneal disorders. All aspects are covered, including refractive and non-refractive surgery indications, models of application, safety, efficacy, performance, outcome measures, evidence of CXL, complications, contraindications, use in children, and controversies. The discussion reflects the considerable progress that has been made in understanding of the modality since its development in the late 1990s. Detailed attention is paid to new concepts, changing surgical techniques and indications, the latest evidence-based science and research, and the future of CXL. Guidance is also provided on the use of CXL in combination with other modalities, such as LASIK, PRK, intracorneal ring implantation and others. The text is accompanied by numerous high-quality color illustrations. Corneal Collagen Cross Linking will provide the reader with a sound grasp of the technique and its use and will hopefully also serve as a stimulus to further research and advances.
Download or read book Efficacy of Corneal Collagen Cross Linking for the Treatment of Keratoconus written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Controversies in the Management of Keratoconus written by Adel Barbara and published by Springer. This book was released on 2019-02-04 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents new technologies which are available now for the rehabilitation of visual acuity in patients suffering from keratoconusand for arresting the progression of this frustrating disease. All these current treatment options in differing combinations aim to improve the quality of life of the patients and although successful, they are causing confusion for the ophthalmologists; what procedure to do and when? How to perform? Which combination of treatments to choose? Controversies in the Management of Keratoconusprovidesthe widely used treatment options for keratoconus including collagen corneal cross –linking (CXL) covering all the available techniques, intrastromal corneal ring segments (ICRS) , phakic intra-ocular lenses (IOLs), photorefractive keratectomy (PRK) combined or not with CXL penetrating keratoplasty (PK) and deep anterior lamellar keratoplasty ( DALK). Each treatment is addressed by more than one author with different points of view in order to present the various approaches, the logic behind them and the most relevant clinical data available.A chapter by the editor tries to put some light on how to navigate among these controversies. This book will be of interest to trainees as well as the specialized ophthalmologists.
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.
Download or read book An Eye Doctor Answers written by Richard A. Driscoll and published by . This book was released on 2012-06 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Brinkmans are back with twelve brand new heart-pounding, edge of the seat adventures. When Ian discovers a golden ring at the bottom of Random Lake, the family embarks on a quest for the owner and gets more than they bargained for.
Download or read book Efficacy of Corneal Collagen Cross linking for the Treatment of Keratoconus written by Zohar Meiri and published by . This book was released on 2016 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Femtosecond Laser Assisted Keratoplasty written by Jorge L Alio and published by JP Medical Ltd. This book was released on 2013-07-30 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keratoplasty is the transplantation of all or part of the cornea to repair scarred or damaged tissue. A femtosecond laser is a laser which emits ultrashort pulses, used for minimally invasive corneal surgery. This book is a concise guide to the technique of femtosecond laser-assisted keratoplasty. Beginning with an introduction to the technology, the following chapters discuss its use for different disorders. This practical text is based on the surgical experience of its internationally recognised authors from Spain, Germany, France and the USA. It includes more than 230 full colour clinical photographs and illustrations to enhance learning. Key points Concise guide to the corneal transplantation procedure of femtosecond laser-assisted keratoplasty Covers key technologies and uses for different disorders Internationally recognised author and editor team Includes more than 230 clinical photographs and illustrations
Download or read book Corneal Biomechanics written by C.J. Roberts and published by Kugler Publications. This book was released on 2017-05-15 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: While lecturing in recent months at a number of prominent institutions, I asked some of the residents and fellows whether and how they might benefit from a book on corneal biomechanics. The typical response was the look of a deer caught in the headlights as they tried to intuit the “appropriate” answer, but had little understanding or insight as to why this would be an important and useful knowledge base for them now, or in the future. I then posed the question differently. “Would a book that explained corneal biomechanical principles and testing devices and their application in detecting eyes at risk for developing keratoconus and post-LASIK ectasia, understanding the biomechanical impact of specific types of keratorefractive surgery and riboflavin UV-A corneal collagen cross-linking, and the impact of corneal biomechanics on the fidelity of intraocular pressure measurement and risk for glaucoma progression be of interest?” Framed in this context, the answer I got was a resounding, “Yes!” Therein lies a fundamental disconnect that highlights both the opportunity and need to educate all ophthalmologists about this nascent field. This comprehensive book is strengthened by the breadth of contributions from leading experts around the world and provides an important resource for ophthalmologists at all levels of training and experience. It gives a panoramic snapshot of our understanding of corneal biomechanics today, bridging the gap between theoretical principles, testing devices that are commercially available and in development as well as current and potential future clinical applications. While there has been a long-held appreciation that all types of keratorefractive surgery have an impact and interdependence on corneal biomechanics and wound healing, the initial finite element analyses that were applied to understand radial keratotomy were limited by incorrect assumptions that the cornea was a linear, elastic, homogenous, isotropic material.1 With the advent of excimer laser vision correction, critical observations indicated that Munnerlyn’s theoretic ablation profiles did not account for either lower or higher order (e.g. spherical aberration) refractive outcomes,2 suggesting that there were important components missing from the equation—e.g., corneal biomechanics and wound healing. In a seminal editorial, Roberts3 pointed out that the cornea is not a piece of plastic, but rather a material with viscoelastic qualities. Since that time, much has been learned about spatial and depth- related patterns of collagen orientation and interweaving, as well as the biomechanical response to different keratorefractive surgeries that sever tension-bearing lamellae, as the cornea responds to and redistributes stress induced by IOP, hydration, eye rubbing, blinking and extraocular muscle forces.3-6 The first reports of post-LASIK ectasia7 highlighted the need to identify a biomechanical signature of early keratoconus as well as corneas at high risk of developing ectasia irrespective of their current topography or tomography. The introduction of two instruments into clinical use—the Ocular Response Analyzer (ORA) and the Corneal Visualization Scheimpflug Technology (Corvis ST)—that allow measurement of various biomechanical metrics further catapulted the field. The availability of these instruments in routine clinical settings allowed the systematic study of the effect of age, collagen disorders, collagen cross-linking, corneal rings, flaps of various depths, contour, sidecut angulation, pockets, and flockets, just to name of few. Future application of biomechanics to the sclera may improve our understanding of the development and prevention of myopia, as well as scleral surgeries and treatments under development for presbyopia. It was appreciated by Goldmann and Schmidt that corneal thickness and curvature would influence the measurement of applanation tonometry. The recent ability to measure some corneal biomechanical metrics have led to IOP measurement that may be more immune both to their influence and the impact of central corneal thickness (CCT). Certain chapters in this book explain how a thin cornea could be stiffer than a thick one and that stiffness is also impacted by IOP, thereby precluding simplistic attempts to adjust IOP measurements using nomograms based upon CCT alone. Also highlighted is how corneal hysteresis, the ability of the cornea to absorb and dissipate energy during the bidirectional applanation response to a linear Gaussian air puff, appears to be an independent risk factor for glaucoma progression and rate of progression.9,10 This comprehensive book starts out with a section devoted to outlining basic biomechanical principles and theories, teaching us the language of what Dupps11 has referred to as “mechanospeak”, thus providing a context and common vocabulary to better comprehend the following chapters. By first defining basic concepts such as stress-strain relationships and creep, this theoretical basis is later applied to explain the pathogenesis of corneal diseases, e.g., explaining how a focal abnormality in corneal biomechanical properties precipitates a cycle of decompensation and localized thinning and steepening, clinically expressed as ectasia progression. These early chapters further detail biomechanical differences between in-vivo and ex-vivo testing, between human and animal corneas and sclera, and between methods of testing. The second section provides a thorough description of two FDA-approved devices to measure corneal biomechanics in the clinic (i.e., the ORA and the Corvis ST), as well as an overview of potential future technologies, including OCT with air puff stimulus, ocular pulse elastography, and Brilloiun microscopy. The third and final section of the book is a thorough treatise on how to interpret the metrics derived from the waveform provided by available clinical devices; their adjunct use in ectasia risk screening; the comparative biomechanical impact of various keratorefractive surgeries and corneal procedures such as PRK, LASIK, SMILE, and corneal collagen cross-linking; the impact of corneal biomechanics on IOP measurement; and potential biomechanical markers of enhanced susceptibility to glaucoma progression. This compendium of our current knowledge of corneal biomechanics, its measurement and application, provides a strong foundation to more fully understand advances in keratorefractive and corneal surgery, diseases, and treatments, all of which are interdependent on and influence inherent corneal biomechanical properties and behavior. Both the robust aspects and limitations of our current understanding are presented, including the challenge of creating accurate and predictive finite element models that incorporate the impact of IOP, corneal thickness, geometry, and scleral properties on corneal biomechanics. This book provides a key allowing clinical ophthalmologists and researchers to grasp the basics and nuances of this exciting field and to shape it as it evolves in the future.
Download or read book Keratoconus written by Edna Almodin and published by Springer Nature. This book was released on 2022-10-27 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keratoconus is a progressive disease of the cornea which can lead to blindness as irregular astigmatism increases. The study of the ectasic diseases of the cornea has evolved considerably in the last several years and this has brought new tools for the keratoconus diagnosis and treatment. A better understanding of treatment options can enhance visual rehabilitation and prevent blindness in these patients. This book provides the reader deeply and updated information on keratoconus treatment. Written by experts from worldwide, the book presents clinical, genetic, metabolic and biomechanical aspects in the development of the disease, the proper intervention time, the imaging tests used for diagnosis and keratoconus monitoring, as well as details on new surgical procedures (as contact lenses and laser technologies) using modern methods with wide technological application. Two pioneers in the keratoconus treatment bring their valuable contribution in specific chapters. Ophthalmologists will find a practical and useful approach of new technologies to get the best results for their patients. This book will really impact changes in the therapeutic conduct of corneal surgeons.
Download or read book Ophthalmic Care written by Janet Marsden and published by M&K Update Ltd. This book was released on 2017-02-16 with total page 907 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by an international team of ophthalmic practitioners, this authoritative book is a vital resource not only for ophthalmic professionals, but for any healthcare professional who cares for patients with eye problems. In the ten years since the first edition was published, practice has moved on, as has the evidence for practice. This second edition draws on the passion and goodwill of the original team of authors, complemented by other colleagues, to fully revise and update the text in line with new findings, new practice and new and exciting treatments. The book is broadly divided into three sections. The first section considers the structure and function of the eye, as well as the basic principles of ophthalmology and eye examination. The second section considers patient care in diverse settings, as well as work-related issues and patient education. It also includes two entirely new chapters on eye banking and global eye health. The third section takes a systematic approach to patient care, working from the front to the back of the eye, discussing some of the common disorders affecting each structure (such as the lens or cornea) or group of structures (such as the eyelids or lacrimal drainage system). The book concludes with a very useful glossary of ophthalmic terms. Some aspects of practice discussed in the text are, of necessity, UK based, but these are clearly indicated and, wherever possible, principles (rather than specifics) are addressed and readers are directed to local policies and interpretations. The first edition of this book became a core text for ophthalmic nursing, in particular, and for the education of ophthalmic nurses across the world. This new edition will provide a comprehensive, up-to-date, evidence-based resource for all ophthalmic healthcare professionals. Contents include: • Physiology of vision • Optics • Pharmacology • Examination of the eye • Visual impairment • Patient education • Work and the eye • Care of the adult ophthalmic patient in an inpatient setting • The care of the child undergoing ophthalmic treatment • Developments in day care surgery for ophthalmic patients • Ophthalmic theatre nursing • The care of patients presenting with acute problems • Eye banking • Global eye health • The eyelids and lacrimal drainage system • The conjunctiva • The cornea • The sclera • The lens • The uveal tract • The angle and aqueous • The retina and vitreous • The orbit and extraocular muscles • Visual and pupillary pathways and neuro-ophthalmology • The eye and systemic disease
Download or read book Keratoconus written by Ashraf Armia and published by Springer Nature. This book was released on 2021-11-20 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a practical guide to the most recent advances in the diagnostic management of corneal ectasia. Clear, concise chapters address new standardized nomograms of treatment of early progressive ectasia, new epithelium on future crosslinking with and without oxygen supplement, customized protocols, laser assisted corneal regularization protocols and the new femtolaser assisted lamellar corneal transplant. Clinicians and surgeons seeking a go-to guide on the topic of corneal ectasia will find this book to be an essential resource for the latest developments and predicted future trends in the field.
Download or read book Management of Early Progressive Corneal Ectasia written by Cosimo Mazzotta and published by Springer. This book was released on 2017-11-08 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a rapid overview of crosslinking protocols and the therapeutic guidelines to optimize the application according to patients age and ectasia staging. This book is unique in the field of crosslinking therapy, as it gives the readers a complete guide for their daily practice to understand the modern accelerated crosslinking protocols, indications and customized treatment strategies. Ophthalmic specialists, opticians, optometrists and doctors working in ophthalmic settings, will find this book to be a ‘go-to’ guide for furthering clinical knowledge of this specialized treatment for early progressive corneal ectasia.
Download or read book Management of Complications in Refractive Surgery written by Jorge L. Alio and published by Springer. This book was released on 2018-01-02 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: This illustrated guide is written by international opinion leaders with extensive experience in the practice of refractive surgery. It is the first book devoted to refractive complications (with practical hints and case reports on outcomes) to provide ophthalmic surgeons with the most adequate solutions for the most frequent problems. All complications are described and lavishly illustrated. The book provides ophthalmic surgeons with the most adequate solutions for the most frequent problems they face in their daily practice.
Download or read book Corneal Cross Linking written by Farhad Hafezi and published by CRC Press. This book was released on 2024-06-01 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corneal Cross-Linking, Second Edition represents an innovative approach to treating primary acquired and secondary induced ectatic disorders. In addition, corneal cross-linking (CXL) has promising applications as an alternative in the treatment of corneal infectious and non-infectious melting, as well as conditions such as Fuchs’ endothelial dystrophy. The new and expanded Second Edition of Corneal Cross-Linking by Drs. Farhad Hafezi and J. Bradley Randleman will provide a concise yet comprehensive summary of the CXL process, including the basic science foundations, treatment protocols and outcomes, recognition and management of potential complications, and modification of standard protocol for special circumstances. Given all the changes in this rapidly progressing field, many brief topics from the first edition have now grown into full chapters or sections. These include expanded sections on alternative treatment protocols, corneal imaging and biomechanics, combing cross-linking with other refractive treatments, and a section devoted specifically to the most highly debated controversies in the field today. With each chapter being fully updated plus including over twenty new chapters that covers the latest advances and future directions, Corneal Cross-Linking, Second Edition represents the cutting-edge of CXL research and clinical practice. “Since the publication of the first edition of this book in 2013, our knowledge of corneal cross-linking has again significantly increased, both scientifically and clinically. Today, concise recommendations (guidelines for cross-linking) help the clinician to select the patients, make decisions, and provide optimal treatment” -Eberhard Spoerl, PhD and Theo Seiler, MD, PhD
Download or read book Corneal Collagen Cross linking and Its Many Benefits written by Craig Jensen and published by . This book was released on 2014 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corneal collagen cross-linking has been around for thousands of year. Only recently has it been studied more in depth as a way to control keratoconus. Up until recently, this has been the only treatment considered in collagen cross-linking. However, more recent studies have found many alternative treatment options for corneal collagen cross-linking. Currently, studies into benefits of collagen cross-linking range from treating thin corneas, and those with other form of ectasia, to treating edematous or bullous corneas. Studies for treatment options have also branched into ways of treating infectious keratitis, to even utilizing collagen cross-linking as a means of controlling low amounts of ametropia, as a stand-alone treatment, or used in conjunction with other refractive corneal surgeries. Currently, Collagen cross-linking is a standard of care in many international countries, however, in the United States, it has yet to pass through national acceptance and approval. The benefits of collagen cross-linking as a treatment option for a broad array of corneal conditions are becoming increasingly obvious.
Download or read book Custom LASIK written by Lucio Buratto and published by . This book was released on 2003 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt: Custom LASIK: Surgical Techniques and Complications is the most comprehensive resource on LASIK currently available. This new edition of LASIK: Surgical Techniques and Complications has been revised and updated to include the latest in wavefront technology, new microkeratome instruments, and the most recent surgical procedures, in addition to various complex cases and complications. The collaboration of Drs. Buratto and Brint, along with a team of international surgeons, have produced a complete text specifically to improve the quality of vision. Amateur surgeons benefit from the format in which basic surgical procedures are explained. Advanced laser procedure with ablations and intralase without the blade are more advanced techniques specifically detailed to assist the expert surgeon. The scope of this new edition is designed to provide the multitude of LASIK techniques that have emerged and the technological advancements that have made them possible. With over 1,000 color illustrations demonstrating the various procedures and concepts, readers are able to develop a more thorough understanding of LASIK. These images supplement the wealth of surgical strategies presented throughout this resource.
