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PRK

Past, Present, and Future

By Lucio Buratto, Stephen Slade
Publisher: CRC Press, 2024-06-01
Pages: 117
Language: en
ISBN_13:9781040143551
ISBN_10:1040143555
Subject: Medical

Refractive Surface Ablation

PRK, LASEK, Epi-LASIK, Custom, PTK, and Retreatment

$Refractive Surface Ablation$

جزئیات و درخواست

By Paolo Vinciguerra, Fabrizio I. Camesasca
Publisher: SLACK Incorporated, 2007
Pages: 392
Language: en
ISBN_10:1556427131
ISBN_13:9781556427138
Subject: Medical

Biomechanics of the Eye

جزئیات و درخواست

By Cynthia J. Roberts, William J. Dupps, J. Crawford Downs
Publisher: Kugler Publications, 2018-04-20
Pages: 546
Language: en
ISBN_13:9789062998869
ISBN_10:9062998860
Subject: Medical

Wavefront and Emerging Refractive Technologies

Proceedings of the 51st Annual Symposium of the New Orleans ...

$Wavefront and Emerging Refractive Technologies$

جزئیات و درخواست

By Jill B. Koury
Publisher: Kugler Publications, 2003
Pages: 224
Language: en
ISBN_10:9062991858
ISBN_13:9789062991853
Subject: Medical

Mastering Refractive IOLs

The Art and Science

$Mastering Refractive IOLs$

جزئیات و درخواست

By David F. Chang
Publisher: SLACK Incorporated, 2008
Pages: 964
Language: en
ISBN_10:1556428596
ISBN_13:9781556428593
Subject: Medical

Rising Stars: Ophthalmology 2021

جزئیات و درخواست

By Jorge L. Alió Del Barrio, Daniel Ting
Publisher: Frontiers Media SA, 2022-11-15
Pages: 143
Language: en
ISBN_13:9782832505571
ISBN_10:2832505570
Subject: Medical

Refractive Surgery

$Refractive Surgery$

جزئیات و درخواست

By Frederick Hampton Roy
Publisher: Elsevier Health Sciences, 2008
Pages: 244
Language: en
ISBN_13:9781416030225
ISBN_10:1416030220
Subject: Medical

Difficult and Complicated Cases in Refractive Surgery

$Difficult and Complicated Cases in Refractive Surgery$

جزئیات و درخواست

By Jorge L. Alió, Dimitri T. Azar, Alessandro Abbouda, Amr El Aswad
Publisher: Springer, 2015-03-25
Pages: 444
Language: en
ISBN_13:9783642552380
ISBN_10:3642552382
Subject: Medical

$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.$

جزئیات و درخواست

By C.J. Roberts, J. Liu
Publisher: Kugler Publications, 2017-05-15
Pages: 328
Language: en
ISBN_13:9789062998760
ISBN_10:9062998763
Subject: Medical

Astigmatism

Optics, Physiology and Management

$This book explores the development, optics and physiology of astigmatism and places this knowledge in the context of modern management of this aspect of refractive error. It is written by, and aimed at, the astigmatism practitioner to assist in understanding astigmatism and its amelioration by optical and surgical techniques. It also addresses the integration of astigmatism management into the surgical approach to cataract and corneal disease including corneal transplantation.$

جزئیات و درخواست

By Michael Goggin
Publisher: BoD – Books on Demand, 2012-02-29
Pages: 322
Language: en
ISBN_13:9789535102304
ISBN_10:9535102303
Subject: Medical

Venetian Humanism in an Age of Patrician Dominance

جزئیات و درخواست

By Margaret L King
Publisher: Princeton University Press, 2014-07-14
Pages: 548
Language: en
ISBN_13:9781400854349
ISBN_10:1400854342
Subject: History

Principles and Practice of Ophthalmology E-Book

$Inside the 3rd edition of this esteemed masterwork, hundreds of the most distinguished authorities from around the world provide today's best answers to every question that arises in your practice. They deliver in-depth guidance on new diagnostic approaches, operative technique, and treatment option, as well as cogent explanations of every new scientific concept and its clinical importance. With its new streamlined, more user-friendly, full-color format, this 3rd edition makes reference much faster, easier, and more versatile. More than ever, it's the source you need to efficiently and confidently overcome any clinical challenge you may face. Comprehensive, authoritative, and richly illustrated coverage of every scientific and clinical principle in ophthalmology ensures that you will always be able to find the guidance you need to diagnose and manage your patients' ocular problems and meet today's standards of care. Updates include completely new sections on "Refractive Surgery" and "Ethics and Professionalism"... an updated and expanded "Geneitcs" section... an updated "Retina" section featuring OCT imaging and new drug therapies for macular degeneration... and many other important new developments that affect your patient care. A streamlined format and a new, more user-friendly full-color design - with many at-a-glance summary tables, algorithms, boxes, diagrams, and thousands of phenomenal color illustrations - allows you to locate the assistance you need more rapidly than ever.$

جزئیات و درخواست

By Daniel M. Albert, Joan W. Miller, Dimitri T. Azar, Barbara A. Blodi
Publisher: Elsevier Health Sciences, 2008-02-27
Pages: 5689
Language: en
ISBN_13:9781437721119
ISBN_10:1437721117
Subject: Medical

La Corte suprema di Roma

raccolta periodica delle sentenze pronunciate dalla Corte di...

Free PDF Free Epub

جزئیات و درخواست

By Italy. Corte suprema di cassazione
1889
Pages: 978
Language: it
OTHER:HARVARD:32044059109389
Subject: Law reports, digests, etc

La Corte suprema di Roma raccolta periodica delle sentenze della Corte di cassazione di Roma

Free Epub

جزئیات و درخواست

1889
Pages: 956
Language: it
OTHER:IBNR:CR300068898

Fractals in Biology and Medicine

$This volume is number four in a series of proceedings volumes from the International Symposia on Fractals in Biology and Medicine in Ascona, Switzerland which have been inspired by the work of Benoît Mandelbrot seeking to extend the concepts towards the life sciences. It highlights the potential that fractal geometry offers for elucidating and explaining the complex make-up of cells, tissues and biological organisms either in normal or in pathological conditions.$

جزئیات و درخواست

By Gabriele A. Losa, Danilo Merlini, Theo F. Nonnenmacher, Ewald R. Weibel
Publisher: Springer Science & Business Media, 2005-08-18
Pages: 334
Language: en
ISBN_10:3764371722
ISBN_13:9783764371722
Subject: Mathematics

LASIK

جزئیات و درخواست

By Ioannis G. Pallikaris, Dimitrios S. Siganos
Publisher: Slack, 1998
Pages: 412
Language: en
OTHER:UOM:39015040545389
Subject: Medical

Corneal Cross-Linking

$Corneal Cross-Linking, Second Edition represents an innovative approach to treating primary acquired and secondary induced ectatic disorders. In addition, corneal cross-linking (CXL) has promising applications as an alternative in the treatment of corneal infectious and non-infectious melting, as well as conditions such as Fuchs’ endothelial dystrophy. The new and expanded Second Edition of Corneal Cross-Linking by Drs. Farhad Hafezi and J. Bradley Randleman will provide a concise yet comprehensive summary of the CXL process, including the basic science foundations, treatment protocols and outcomes, recognition and management of potential complications, and modification of standard protocol for special circumstances. Given all the changes in this rapidly progressing field, many brief topics from the first edition have now grown into full chapters or sections. These include expanded sections on alternative treatment protocols, corneal imaging and biomechanics, combing cross-linking with other refractive treatments, and a section devoted specifically to the most highly debated controversies in the field today. With each chapter being fully updated plus including over twenty new chapters that covers the latest advances and future directions, Corneal Cross-Linking, Second Edition represents the cutting-edge of CXL research and clinical practice. “Since the publication of the first edition of this book in 2013, our knowledge of corneal cross-linking has again significantly increased, both scientifically and clinically. Today, concise recommendations (guidelines for cross-linking) help the clinician to select the patients, make decisions, and provide optimal treatment” -Eberhard Spoerl, PhD and Theo Seiler, MD, PhD$

جزئیات و درخواست

By Farhad Hafezi, J. Bradley Randleman
Publisher: CRC Press, 2024-06-01
Pages: 297
Language: en
ISBN_13:9781040143636
ISBN_10:1040143636
Subject: Medical

Ocular Rigidity, Biomechanics and Hydrodynamics of the Eye

$This book focuses on the concept of ocular rigidity, the biomechanical properties and hydrodynamics of the human eye. The basics of anatomy and physiology are explored and the relevant data for the clinician are emphasized throughout the book. The engineering aspects as well as the clinical interpretation are presented to provide context. Ocular Rigidity, Biomechanics and Hydrodynamics of the Eye summarises recent evidence on ocular rigidity, but also provides a complete presentation of the data so far. The authors have recently worked on ocular rigidity corneal and globe biomechanics and hydrodynamics and the new, up-to-date data on the subject are highlighted in each chapter. The aim is to provide the framework or the understanding of these parameters and to determine their relevance in health and disease. This book will be an essential read for all practicing ophthalmologists looking to gain a more in-depth understanding of this interesting area of research particularly in refractive surgery and glaucoma.$

جزئیات و درخواست

By Ioannis Pallikaris, Miltiadis K. Tsilimbaris, Anna I. Dastiridou
Publisher: Springer Nature, 2021-05-26
Pages: 354
Language: en
ISBN_13:9783030644222
ISBN_10:3030644227
Subject: Medical

Customized Corneal Ablation

The Quest for SuperVision

جزئیات و درخواست

By Scott MacRae, Ronald R. Krueger
2001
Pages: 424
Language: en
OTHER:UOM:39015049738613
Subject: Medical

Journal of Refractive Surgery

$Journal of Refractive Surgery$

جزئیات و درخواست

2009
Pages: 494
Language: en
OTHER:UCLA:L0090612649
Subject: Refractive keratoplasty

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