Download or read book Corneal Topography in the Wavefront Era written by Ming Wang and published by Slack Incorporated. This book was released on 2006-01-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding corneal topography is essential for an anterior segment surgeon, general ophthalmologist and optometrist. Corneal Topography PDF CD-ROM delivers the information needed to develop an understanding of the state-of-the-art corneal topographic technology and its relationship to keratorefractive surgery. As the popularity of wavefront sensing continues to rise, it is important to keep pace with the latest developments in corneal topography, which remains an indispensable part of anterior segment ophthalmology practice. The improvement in corneal topographic and wavefront-sensing technologies coupled with the advent of an innovative custom treatment approach using these two technologies has ushered in a new era of cornea and refractive surgery with unprecendented superior clinical outcomes. In response to the need for an updated corneal topography reference, Dr. Ming Wang organized a team of over 30 of the field's leading professionals to produce this informative and comprehensive text. Inside Corneal Topography PDF CD-ROM, you will find a comprehensive review of the science of corneal topography and principles and application of all major topographic imaging systems currently available. Emphasis is placed on clinical use of these topographic systems in addition to pre- and postoperative evaluation and management of refractive surgery patients. New technologies such as topography-guided and combined wavefront and topography-guided custom treatments are presented. The clinical case presentations reinforce the key scientific concepts discussed early in the text as well as serve as a rapid and easy-access reference for the most common examples of topographic problems found in anterior segment and refractive surgery patients. Color figures and topographical maps are extensively used to illustrate the types and features of corneal topography and clinical case presentation. In today's wavefront era, it is important to understand the role of corneal topography in the anterior segment and refractive surgery practice. Corneal Topography PDF CD-ROM's focus and scope makes it a must-have reference for all ophthalmologists and optometrists. Topics Include: Anatomy and physiology of the cornea Classification of topographic technologies Scales and conventions used in corneal topography Principles and applications of major types of corneal topographies Clinical case presentation of commonly encountered problems in anterior segment and refractive surgery Posterior corneal changes in refractive surgery New technology in corneal topography - driven treatment New technologies in combined custom treatment approach using corneal topography and wavefront sensing. Features on the PDF CD-ROM: Includes the full-text! Includes all images! User-friendly PDF Format! System Requirements For Windows Users Only: Intel Pentium processor Microsoft Windows 95 OSR 2.0, Windows 98 SE, Windows Millennium Edition, Windows NT 4.0 with Service Pack 5, Windows 2000, or Windows XP 64MB of RAM 24MB of available hard-disk space Adobe Acrobat Reader 5 or above (included)

Download or read book Corneal Topography written by Ming Wang and published by CRC Press. This book was released on 2024-06-01 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the rapid advancement of corneal topography and wavefront technologies and the increased application of corneal topography not only in refractive but also in premium IOL surgery, a new edition of the best-selling Corneal Topography: A Guide for Clinical Application in the Wavefront Era will be the foremost resource for both ophthalmologists and optometrists. In this Second Edition, Dr. Ming Wang, Dr. Tracy Swartz and over 50 contributors combine the important topics of refractive and premium lens surgeries and put corneal topography in the context of wavefront technology. With over 500 images, this edition gives special attention to the latest advances in these technologies. The state-of-the-art science and application of corneal topography for these anterior segment surgeries is well represented in Corneal Topography, A Guide for Clinical Application in the Wavefront Era, Second Edition, making it the latest and most comprehensive reference of these state-of-the-art technologies for refractive and for premium IOL surgery. Topographic and Wavefront Technologies Covered Include: • Placido disc-based topographic systems • Elevation-based topographic systems • Ultrasound-based topographic systems • OCT-based topographic systems • Topography and wavefront combined systems Topographic Applications Covered Include: • Topographies of corneal diseases, including post-RK/CK/LASIK/PRK • Topography-guided contact lens fitting • Topography application in refractive surgery and in premium IOL surgeries • Topographic guidance for corneal surgeries • Topography-guided custom treatments • Combined treatment strategies using topography and wavefront data • Future development of corneal topography in the wavefront era Updated and reorganized to reflect changes in the technology, Corneal Topography: A Guide for Clinical Application in the Wavefront Era, Second Edition is indispensible for all anterior segment surgeons, ophthalmologists, and optometrists.

Download or read book Corneal Topography A Guide for Clinical Application in the Wavefront Era written by and published by . This book was released on 2015-02-10 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corneal Topography, A Guide for Clinical Application in the Wavefront Era, Second Edition is the latest and most comprehensive reference of these state-of-the-art technologies for refractive and for premium IOL surgery.

Download or read book Corneal Topography written by Ming Wang and published by Slack. This book was released on 2012 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rev. ed. of: Corneal topography in the wavefront era / edited by Ming Wang; coordinated by Tracy Swartz. c2006.

Download or read book Atlas and Clinical Reference Guide for Corneal Topography written by Ming Wang and published by CRC Press. This book was released on 2024-06-01 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corneal topography has become essentially a pattern recognition trade, best learned by viewing multiple images of representative patterns. In spite of this, currently available topography books focus only on the technology behind topography, or a particular application of topography, as opposed to presenting a comprehensive collection of topographic patterns that provide quick, consistent pattern recognition and identification. Drs. Wang and Kugler, along with Drs. Morgan and Boerman, look to fill this void with Atlas and Clinical Reference Guide for Corneal Topography. Atlas and Clinical Reference Guide for Corneal Topography is the first corneal topography book that lends itself to efficient image search and reference for busy clinicians at chair side. Organized into both map-based and disease-based sections, the book allows for quick reference in busy clinical situations. Images come from the commonly used topographers, the Zeiss Atlas and the Oculus Pentacam, but the principles of pattern recognition can be applied to any topographer. Due to the text’s large collection of topographic images and corresponding corneal conditions, Atlas and Clinical Reference Guide for Corneal Topography can be used side by side with the topographer. Designed as both a learning tool for students and a reference for clinicians to use when faced with a challenging topography interpretation, Atlas and Clinical Reference Guide for Corneal Topography will be appreciated by a wide spectrum of eye care professionals. General ophthalmologists, cataract and refractive surgeons, corneal specialists, optometrists, and ophthalmology residents and students will benefit from this invaluable atlas for corneal topography.

Download or read book Wavefront Analysis Aberrometers and Corneal Topography written by Benjamin F. Boyd and published by . This book was released on 2003-01-01 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Atlas and Clinical Reference Guide for Corneal Topography written by Ming Wang and published by CRC Press. This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Currently available topography books focus only on the technology behind topography, or a particular application of topography, as opposed to presenting a comprehensive collection of topographic patterns that provide quick, consistent pattern recognition and identification.

Download or read book Measuring Corneal Topography Using Wavefront Analysis Technique written by Nina Korablinova and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Keratoconus Keratoectasia written by Ming Wang and published by SLACK Incorporated. This book was released on 2010 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the recent years, keratoconus and keratoectasis have become increasingly important diseases in ophthalmic practice due to the increasing number of keratorefractive surgery cases and the availability of new treatment modalities other than corneal transplantation. For both the genetic form of the disease (keratoconus) and the acquired form (keratoectasia), new modalities of diagnosis and treatments have become available, enabling physicians to treat these two ecstatic corneal diseases earlier and effectively, delaying or even avoiding major surgeries such as corneal transplantation. This book is a concise, well-illustrated and clinically indispensable guide for treating these two important corneal diseases.

Download or read book Corneal Topography in Clinical Practice Pentacam System Basics and Clinical Interpretation written by Mazen M Sinjab and published by JP Medical Ltd. This book was released on 2012-05-18 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corneal topography is a non-invasive medical imaging technique for mapping the surface curvature of the cornea, the outer structure of the eye. This procedure may be carried out with a Pentacam, which uses a rotating camera to create a 3D image of the anterior of the eye. This second edition has been fully updated to provide the latest developments in corneal topography and tomography using the Pentacam machine. Beginning with an introduction, the following sections describe the fundamentals of corneal topography and use of the Pentacam with different ophthalmic disorders. With nearly 250 high quality, colour images and illustrations, this concise guide is especially useful to graduate and postgraduate students in learning how to read and interpret corneal topography.

Download or read book Surgical Correction of Presbyopia written by Ming Wang and published by CRC Press. This book was released on 2024-06-01 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: Until recently, surgical correction of presbyopia was considered the “last frontier” in ophthalmology, but today there are a wide variety of treatments available. This Fifth Wave of ophthalmology opens up a whole world of surgical solutions for presbyopes who would otherwise have no recourse, and Surgical Correction of Presbyopia: The Fifth Wave is designed as a complete guide to the wide range of surgical solutions available. Dr. Ming Wang is joined by Associate Editors Drs. Tracy Schroeder Swartz and Nathan Rock and their all-star team of expert contributors to compile the first comprehensive review of all the state-of-the-art surgical treatments for presbyopia. This includes a history of refractive and lens surgery, a review of presbyopia and its medical management, as well as in-depth sections on not only those surgical treatments that are currently available but also those under active clinical investigation. Inside Surgical Correction of Presbyopiais a detailed presentation on corneal solutions, including laser treatments and corneal inlays; lenticular solutions, including intraocular lenses; and scleral solutions, such as scleral implants and ablation. Each procedure features a discussion on the indications, benefits, results and risks of the procedure with close attention to clinical applications. Also included are chapters on complex cases, which focus on improving outcomes both with patient and surgical modality selection and postoperative management. Chapters include: Excimer and Femtosecond LASER for Treatment of Presbyopia Shape-Changing Inlays Multifocal Intraocular Lenses Extended Depth of Focus Intraocular Lenses Laser Scleral Microablation Procedure Marketing Surgical Treatment for Presbyopia The Future of Presbyopia Treatment Presbyopia is the most common refractive condition and more patients and providers are actively seeking surgical solutions. With Surgical Correction of Presbyopia: The Fifth Wave, anyone from ophthalmology technicians and opticians to practicing ophthalmologists and optometrists will confidently understand and be prepared to tackle this “last frontier” of ophthalmology.

Download or read book Corneal topography with wavefront AS OCT written by and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Corneal Topography written by David J. Schanzlin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corneal Topography is designed to provide complete, practical coverage of a new field for both the general ophthalmologist and the subspecialist in the area of corneal disease. The volume explores the history of corneal topography and comprehensively demonstrates the usefulness of all forms of current instrumentation in clinical and ivestigative work striving toward improved surgical intervention in the cornea

Download or read book Corneal Topography written by James P. Gills and published by Slack. This book was released on 1995 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text shows how corneal topography can be used in radial and astigmatic keratotomy, cataract surgery, penetrating keratoplasty and several combined procedures. It focuses on the quality of the images, methods of analysis and the required accuracy of corneal topography.

Download or read book Refractive Lens Exchange written by Ming Wang and published by CRC Press. This book was released on 2024-06-01 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Permanent surgical treatment for presbyopia remains the hereto unconquered “last frontier” in anterior segment surgery. Over the years, continuing innovations like Phaco, Radial Keratotomy, LASIK, and premium intraocular lenses have pushed toward this ultimate goal, but now anterior segment surgery is closer than ever with the advent of modern laser-assisted presbyopic lens implantation. Let Refractive Lens Exchange: A Surgical Treatment for Presbyopia, the first book of its kind, be your guide to this fifth wave of innovation in the surgical treatment of presbyopia. Dr. Ming X. Wang, MD, PhD, joined by Associate Editor Dr. Tracy S. Swartz, OD, MS, FAAO and more than 30 expert contributors, compiled this remarkable book. Never before has there been a book dedicated to all aspects of refractive lens exchange as a permanent treatment for presbyopia, both medically and surgically. Highlights of Refractive Lens Exchange include: Overview of all surgical treatments for presbyopia Dysfunctional lens syndrome and pathophysiology Patient education and preoperative assessment Marketing refractive lens exchange as a surgical treatment for presbyopia New technologies in assessing dysfunctional lens syndrome New technologies in mapping cornea and lens for refractive lens exchange Retinal issues related to refractive lens exchange Presbyopic lens types, indications, and contraindications for refractive lens exchange Lens- and cornea-based astigmatism correction Intraocular calculations for post refractive surgery eyes for refractive lens exchange Intraoperative wavefront technology 3D high-definition microsurgical visualization and positioning technology Femtosecond laser application in refractive lens exchange Postoperative care and complication management YAG capsulotomy after refractive lens exchange: indications and alternatives Postoperative care and complication management Keratorefractive enhancement Designed for newcomers as well as seasoned eyecare professionals, Refractive Lens Exchange: A Surgical Treatment for Presbyopia is the first book to guide ophthalmic surgeons, optometrists, and technicians through this exciting new field that is emerging as a safe and effective primary surgical treatment for presbyopia.

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 Atlas and Text of Corneal Pathology and Surgery written by Boyd Samuel, Gutierrez Angela Maria, McCulley James P. and published by JAYPEE BROTHERS PUBLISHERS. This book was released on with total page 605 pages. Available in PDF, EPUB and Kindle. Book excerpt: