Optometri / optiker

290 produkter

Kategorier

290 produkter

Osynlig diagnos
AvCarl Fernholm
Häftad, Svenska, 2020
4,8 utav 5 stjärnor. Totalt antal röster:(5)
207 kr
Skickas
Jag var 35 år och mitt i karriären när mina symtom kom smygande efter två omgångar influensa. Det började med smärta i nacken och yrselattacker, och till slut var jag så utmattad att jag inte längre klarade av vardagen. Via banbrytande amerikansk forskning kunde jag till slut diagnostiseras och behandlas rätt; det skulle visa sig att de allvarliga symtomen berodde på samsynsproblem i form av en liten dold skelning. Efter behandling med prismaglasögon är jag helt återställd och sedan upptäckten har jag gjort ett omfattande arbete som mynnat ut i boken Osynlig Diagnos. Boken baseras på över 100 forskningsartiklar och innehåller nya rön bakom många av vår tids vanligaste hälsoproblem såsom smärta, yrsel, ångest och utmattningsbesvär - besvär som genererar ett stort lidande och stora kostnader. Syftet med boken är att sprida kunskapen kring detta allvarliga men för de allra flesta okända ögonproblem och därigenom hjälpa andra människor som lider.
Wills Eye Manual: Print + eBook with Multimedia
Office and Emergency Room Diagnosis and Treatment of Eye Disease
AvCHRISTOPHER J. RAPUANO
Häftad, Engelska, 2025
1 118 kr
Skickas inom 7-10 vardagar
For more than 35 years, The Wills Eye Manual, originally edited by Drs. Christopher J. Rapuano and Mark A. Friedberg, has remained a best-selling source of authoritative guidance on treating ocular disorders in an office, emergency room, or hospital setting. Offering information on more than 200 ophthalmic conditions, effective recommendations from initial workup and diagnosis through extended treatment, and a concise outline format designed for portability and quick reference, the ninth edition of this trusted manual is a comprehensive, high-yield resource for both trainees and seasoned practitioners. Provides current, superbly illustrated information on 200+ ophthalmic conditions in a handy, portable manual, along with extensive multimedia content Offers easily accessible clinical recommendations for evaluation, diagnosis, workup, and treatment Addresses changing trends in oculoplastics, glaucoma, cornea, pediatrics, neuro-ophthalmology, uveitis, retina, and more Includes an expanded video library covering a wide range of common procedures with step-by-step narration, carefully selected to complement key techniques Contains up-to-date content from cover to cover, with all chapters written and edited by the residents and attending ophthalmologists at one of the busiest and largest eye hospitals in the country
Clinical Anatomy and Physiology of the Visual System
AvLee Ann Remington,Denise Goodwin
Inbunden, Engelska, 2021
919 kr
Skickas
Providing the ocular anatomy and physiology content needed for a thorough comprehension of this complex field, Clinical Anatomy and Physiology of the Visual System, 4th Edition, offers a solid foundation for recognizing and understanding specific clinical situations and how they relate to anatomic structure. This concise, well-referenced resource covers the clinical anatomy of the eye, its adnexa and visual pathways, and histologic information-the information you need for success in coursework, certification exams, and clinical practice.
Contact Lens Practice
AvNathan Efron
Inbunden, Engelska, 2023
1 519 kr
Skickas inom 11-20 vardagar
**Selected for 2026 Doody's Core Titles in Optometry** The field of contact lenses continues to evolve at a rapid pace, with new optical designs and vision correction options continually being developed. Additionally, the rapid expansion of clinical instrumentation offers eye care practitioners a wide choice of investigative techniques for assessing in-eye contact lens performance and diagnosing adverse reactions.Now in its fourth edition, Contact Lens Practice has been thoroughly updated and revised to capture these developments and more, and translate them into an organised and easily digestible resource. Written and edited by award-winning author, researcher, and lecturer, Professor Nathan Efron, this title provides a comprehensive, evidence-based overview of the scientific foundations and clinical applications of contact lens fitting. The text has been refreshed by the inclusion of five new authors - a mixture of scientists and clinicians, all of whom are at the cutting edge of their specialty.
Oxford Handbook of Ophthalmology
AvAlastair K. O. Denniston,Philip I. Murray
Engelska, 2018
654 kr
Skickas
Fully revised and updated throughout, the fourth edition of the Oxford Handbook of Ophthalmology now includes free access to the ophthalmic online media bank, a selection of high-quality clinical images and videos for a wide breadth of key ophthalmic diseases. Clear, concise, and practical, this handbook provides immediate access to the detailed clinical information you need, in casualty, clinic, theatre, and on the wards.The core of the book comprises a systematic synopsis of ophthalmic disease directed towards diagnosis, interim assessment, and ongoing management. Assessment boxes for common clinical conditions and algorithms for important clinical presentations illustrate this practical approach. The information is easily accessible, presented in a clear format with areas of importance highlighted. Key sections for the trainee include: Clinical Skills, Aids to Diagnosis, Investigations and their Interpretation, Perioperative Care, Theatre Notes and Therapeutics. The wider practise of eye-care is supported by expanded chapters on Refractive Ophthalmology, Vision in Context, Evidence Based Ophthalmology and Resources for Ophthalmologists.Now including newer treatments across a range of specialities such as SMILE, gene-therapy and retinal prostheses, as well as greater emphasis on the evidence underlying current clinical practice and guidelines, this handbook has never been more essential for all those working in eye-care. Whether you want to learn about patient-reported outcomes, identify a surgical instrument, interpret a statistical test, or diagnose and treat ophthalmic emergencies, you will find it here.Whatever your role in caring for patients with eye disease: ophthalmologist, optometrist, orthoptist, ophthalmic nurse, or other health profession - discover for yourself why this handbook has become the 'go-to' resource for tens of thousands of eye-care professionals around the world.
Clinical Management of Binocular Vision
AvMitchell Scheiman,Bruce Wick
Häftad, Engelska, 2019
1 367 kr
Skickas inom 7-10 vardagar
Selected as a Doody's Core Title for 2025!The first new edition of Clinical Management of Binocular Vision in five years has been updated—across all chapters—with new guidelines and protocols based on the latest research in the field. You’ll learn how to perform current, clinically accurate assessments, diagnoses, and therapies for a wide range of conditions. Each disorder is tackled in detail, touching on common symptoms, instrumentation, available treatment options, and more. New for this edition: 49 videos demonstrating proper diagnostic techniques and therapeutic procedures. Now with new information on concussion-related vision disorders. Enhanced guidelines for management of developing refractive error, including detailed description of preventative treatments for myopia. Formatted for easy reading, with succinct and bulleted text, numerous figures and illustrations, and step-by-step instructions. True-to-life case studies help you apply what you’ve read in a real-world clinical setting. Ideal for faculty, students who are new to the field, and veteran optometrists who need a refresh or easily accessible quick-reference. Enrich Your Ebook Reading ExperienceRead directly on your preferred device(s),such as computer, tablet, or smartphone. Easily convert to audiobook,powering your content with natural language text-to-speech.
Kanski's Synopsis of Clinical Ophthalmology
AvJohn F. Salmon
Häftad, Engelska, 2022
964 kr
Skickas
Practical and portable, Kanski's Synopsis of Clinical Ophthalmology, 4th Edition, distills the key information from the bestselling Kanski’s Clinical Ophthalmology: A Systematic Approach into a convenient, easy-to-follow volume. Perfect for quick reference, this concise resource contains "need to know" information highlighted by more than 900 high-quality illustrations and clinical photographs with clear explanations. New author, Dr. John Salmon, provides a fresh approach to critical content, ensuring that this manual remains an ideal on-the-go reference, as well as an efficient study guide for examinations.
Optometrist
AvJulie Dascoli
Häftad, Engelska, 2024
97 kr
Skickas inom 5-8 vardagar
Ryan's Retina
AvSriniVas R. Sadda,Andrew P. Schachatm. fl.
Inbunden, Engelska, 2022
6 899 kr
Skickas inom 11-20 vardagar
Through six outstanding and award-winning editions, Ryan's Retina has offered unsurpassed coverage of this complex subspecialty-everything from basic science through the latest research, therapeutics, technology, and surgical techniques. The fully revised 7th Edition, edited by Drs. SriniVas R. Sadda, Andrew P. Schachat, Charles P. Wilkinson, David R. Hinton, Peter Wiedemann, K. Bailey Freund, and David Sarraf, continues the tradition of excellence, balancing the latest scientific research and clinical correlations and covering everything you need to know on retinal diagnosis, treatment, development, structure, function, and pathophysiology. More than 300 global contributors share their knowledge and expertise to create the most comprehensive reference available on retina today.Features sweeping content updates, including new insights into the fundamental pathogenic mechanisms of age-related macular degeneration, advances in imaging including OCT angiography and intraoperative OCT, new therapeutics for retinal vascular disease and AMD, novel immune-based therapies for uveitis, and the latest in instrumentation and techniques for vitreo-retinal surgery. Includes five new chapters covering Artificial Intelligence and Advanced Imaging Analysis, Pachychoroid Disease and Its Association with Polypoidal Choroidal Vasculopathy, Retinal Manifestations of Neurodegeneration, Microbiome and Retinal Disease, and OCT-Angiography. Includes more than 50 video clips (35 new to this edition) highlighting the latest surgical techniques, imaging guidance, and coverage of complications of vitreoretinal surgery. New videos cover Scleral Inlay for Recurrent Optic Nerve Pit Masculopathy, Trauma with Contact Lens, Recurrent Retinal Detachment due to PVR, Asteroid Hyalosis, and many more. Contains more than 2,000 high-quality images (700 new to this edition) including anatomical illustrations, clinical and surgical photographs, diagnostic imaging, decision trees, and graphs. Enhanced eBook version included with purchase. Your enhanced eBook allows you to access all of the text, figures, and references from the book on a variety of devices.
Dry Eye Disease
AvAnat Galor
Häftad, Engelska, 2022
822 kr
Skickas inom 10-15 vardagar
Clinically-oriented�and up-to-date,�Dry Eye Diseases�focuses on the latest diagnostic techniques, management guidelines, and treatment options for dry eye disorders. This consolidated resource provides guidance on the clinical assessment of patients presenting with dry eye symptoms as well as a�global perspectives�on the use of FDA and off-label products. Practicing and trainee ophthalmologists and optometrists will find this an indispensable resource for understanding this complex disorder.
Schaum's Outline of Optics
AvEugene Hecht
Häftad, Engelska, 1975
370 kr
Skickas inom 3-6 vardagar
Confusing Textbooks? Missed Lectures? Not Enough Time?
Fortunately for you, there's Schaum's Outlines. More than 40 million students have trusted Schaum's to help them succeed in the classroom and on exams. Schaum's is the key to faster learning and higher grades in every subject. Each Outline presents all the essential course information in an easy-to-follow, topic-by-topic format. You also get hundreds of examples, solved problems, and practice exercises to test your skills.
This Schaum's Outline gives you
Practice problems with full explanations that reinforce knowledgeCoverage of the most up-to-date developments in your course fieldIn-depth review of practices and applications
Fully compatible with your classroom text, Schaum's highlights all the important facts you need to know. Use Schaum's to shorten your study time-and get your best test scores!
Schaum's Outlines-Problem Solved.
Schaum's Outline of Optics
AvEugene Hecht
E-bok
Engelska, 1974
401 kr
Läs direkt efter köp
Confusing Textbooks? Missed Lectures? Not Enough Time?
Fortunately for you, there''s Schaum''s Outlines. More than 40 million students have trusted Schaum''s to help them succeed in the classroom and on exams. Schaum''s is the key to faster learning and higher grades in every subject. Each Outline presents all the essential course information in an easy-to-follow, topic-by-topic format. You also get hundreds of examples, solved problems, and practice exercises to test your skills.
This Schaum''s Outline gives you
Practice problems with full explanations that reinforce knowledgeCoverage of the most up-to-date developments in your course fieldIn-depth review of practices and applications
Fully compatible with your classroom text, Schaum''s highlights all the important facts you need to know. Use Schaum''s to shorten your study time-and get your best test scores!
Schaum''s Outlines-Problem Solved.
Primary Care of the Posterior Segment, Third Edition
AvLarry Alexander
E-bok
Engelska, 2002
2 834 kr
Läs direkt efter köp
This is an essential text and reference for optometrists treating patients with problems of the retina, vitreous body, and optic nerve. The Third Edition has been updated with new information on pathophysiology, clinical management guidelines, treatment algorithms, and front index of signs and symptoms.
Geometrical and Visual Optics, Second Edition
AvSteven H. Schwartz
E-bok
Engelska, 2013
1 153 kr
Läs direkt efter köp
A COMPREHENSIVE, LEARNER-FRIENDLY INTRODUCTION TO CLINICAL OPTICS
Geometrical and Visual Optics, Second Edition is a rigorous, yet highly accessible text that expertly combines basic optics with clinical applications in a way that brings key optometry topics to life. It emphasizes a vergence approach to geometrical and visual optics, reinforcing its fundamental utility in clinical practice. Featuring an open, workbook-style design, the book avoids unnecessary math and focuses on those optical concepts and problem-solving skills that are the cornerstones of contemporary clinical eye care.
If you are an optometry student who wants to gain a complete, intuitive understanding of geometrical and visual optics, Geometrical and Visual Optics belongs on your reference shelf.
FEATURES
In-depth coverage of geometrical and visual optics spans the full spectrum of topics, from refraction at spherical surfaces, to thin and thick lenses, to depth of field, ametropia, magnification, retinal image size, and reflectionFocus on the vergence approach provides a conceptual paradigm for the book and underscores its strategic application in clinical practiceValuable chapter on basic terms and concepts reviews light sources, rays, and pencils; vergence; and refraction and Snell''s lawPrimary emphasis on core concepts, with a minimum of formulae and superfluous mathematicsChapter-ending self-assessment problems of varying complexity--with worked-out answers--and two comprehensive practice examinations with answersExceptional pedagogy, including concept-clarifying figures and chapter summaries with key formulae
PRAISE FOR DR. STEVEN SCHWARTZ:Like his popular book, Visual Perception: A Clinical Orientation, Dr. Schwartz offers a foundational optics text for eye care professionals in training and those seeking a concise review. Dr. Schwartz''s contributions to our collective success remain unmatched. -- Jeff Rabin, Optometry and Vision Science
Lange Q&A Optometry Review: Basic and Clinical Sciences
AvJeffrey C. Rabin,Marlon R. Utechm. fl.
E-bok
Engelska, 2015
961 kr
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1,700 Q&As AND A TEST-SIMULATING DVD WITH 500 MORE Q&As HELP YOU ACHIEVE YOUR HIGHEST SCORE POSSIBLE ON OPTOMETRY EXAMS IN BASIC AND CLINICAL SCIENCE
Optometry Review: Basic and Clinical Sciences provides a complete review of the fundamental basic and clinical science concepts students need to know to excel on optometry exams. This rigorous review includes more than 1,700 exam-style Q&A with detailed answer explanations. The companion DVD enables students to create custom exams and keep track of their scores with 500 unique questions not found in the book .
· Rigorous Q&A review to supplement your optometry coursework and prepare for exams
· Explanations for correct and incorrect answers
· A complete review of fundamental basic science and clinical science concepts
· Chapters include Anatomy, Neuroanatomy, Human Physiology, Biochemistry, Visual Science, Visual Optics, General Pharmacology, Ocular Pharmacology, and eleven others
· Written by an experienced optometry professors and clinicians who know exactly what it takes to master the optometry curriculum and pass exams
· Companion DVD enables you to create and customize your own exams and track your scores
Vision in Vehicles VII
AvI.D. Brown,S.P. Taylorm. fl.
Inbunden, Engelska, 1999
2 124 kr
Skickas inom 10-15 vardagar
The Seventh International Conference series on Vision in Vehicles was held in Marseilles in September 1997. This event was run in conjunction with the Applied Vision Association, the Ergonomics Society and with the participation of INRETS (Institut National de Recherche sur les Transports et leur Sécurité).This volume presents the selected and edited proceedings. The papers at the conference were ordered into sessions, from driver-specific aspects to interfacing with the new in-vehicle systems. These sessions are mirrored in the ordering of the chapters. The conference is long established and regularly draws representatives from the key international research centres working in this popular and diverse transportation area.
Progress in Optics
E-bok
Engelska, 2005
2 679 kr
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In the thirty-seven years that have gone by since the first volume of Progress in Optics was published, optics has become one of the most dynamic fields of science. At the time of inception of this series, the first lasers were only just becoming operational, holography was in its infancy, subjects such as fiber optics, integrated optics and optoelectronics did not exist and quantum optics was the domain of only a few physicists. The term photonics had not yet been coined. Today these fields are flourishing and have become areas of specialisation for many science and engineering students and numerous research workers and engineers throughout the world. Some of the advances in these fields have been recognized by awarding Nobel prizes to seven physicists in the last twenty years. The volumes in this series which have appeared up to now contain nearly 190 review articles by distinguished research workers, which have become permanent records for many important developments. They have helped optical scientists and optical engineers to stay abreast of their fields. There is no sign that developments in optics are slowing down or becoming less interesting. We confidently expect that, just like their predecessors, future volumes of Progress in Optics will faithfully record the most important advances that are being made in optics and related fields.
Fundamentals of Optical Waveguides
AvKatsunari Okamoto
Inbunden, Engelska, 2006
1 313 kr
Skickas inom 10-15 vardagar
Fundamentals of Optical Waveguides is an essential resource for any researcher, professional or student involved in optics and communications engineering. Any reader interested in designing or actively working with optical devices must have a firm grasp of the principles of lightwave propagation. Katsunari Okamoto has presented this difficult technology clearly and concisely with several illustrations and equations. Optical theory encompassed in this reference includes coupled mode theory, nonlinear optical effects, finite element method, beam propagation method, staircase concatenation method, along with several central theorems and formulas. Since the publication of the well-received first edition of this book, planar lightwave circuits and photonic crystal fibers have fully matured. With this second edition the advances of these fibers along with other improvements on existing optical technologies are completely detailed. This comprehensive volume enables readers to fully analyze, design and simulate optical atmospheres. Exceptional new chapter on Arrayed-Waveguide Grating (AWG) In-depth discussion of Photonic Crystal Fibers (PCFs) Thorough explanation of Multimode Interference Devices (MMI) Full coverage of polarization Mode Dispersion (PMD)
System for Ophthalmic Dispensing
AvClifford W. Brooks
Inbunden, Engelska, 2023
1 063 kr
**Selected for Doody’s Core Titles� 2024 in Optometry**Understand and meet your patients’ eyewear needs with the reference that covers every aspect of dispensing ? from basic terminology to frame selection to eyewear fitting, adjusting, and repairing. System for Ophthalmic Dispensing, 4th Edition, provides a step-by-step system for properly fitting and adjusting eyewear, including the nuances of lens selection, making it an ideal resource both for students who are just learning about dispensing and practitioners who want to keep their skills up to date. Thorough discussions of every topic and hundreds of newly revised and enhanced review questions make this a one-stop educational and clinical resource for today’s eyecare professionals.
Visual Aspects of Dyslexia
AvZoi Kapoula,John Stein
E-bok
PDF, Engelska, 2012
933 kr
Läs direkt efter köp
Dyslexia affects about 10% of all children and is a potent cause of loss of self-confidence, personal and family misery, and waste of potential. Although the dominant view is that it is caused by specifically linguistic/phonological weakness, recent research within the field of neuroscience has shown that it is associated wtih visual processing problems as well. These discoveries have led to a resurgence in visual methods of treatment, which have shown promisingresults.''Visual aspects of dyslexia'' brings together cutting edge research from a range of disciplines - including neurology, neuroscience, and the vision sciences, to present the first comprehensive review of this recent research. It includes chapters from leading specialists which, in addition to reporting on the latest research, show how this knowledge is being successfully applied in the development of effective visual treatments for this common problem. Sections within the book cover the role ofeye movements in reading, visual attention and reading, the neural bases of reading, and the relationship between visual stress and dyslexia.Making a valuable contribution in helping us develop a deeper understanding of dyslexia, this is an important book for those in the fields of psychology, neuroscience, and education.
Visual Aspects of Dyslexia
AvZoi Kapoula,John Stein
E-bok
Engelska, 2012
942 kr
Läs direkt efter köp
Dyslexia affects about 10% of all children and is a potent cause of loss of self-confidence, personal and family misery, and waste of potential. Although the dominant view is that it is caused by specifically linguistic/phonological weakness, recent research within the field of neuroscience has shown that it is associated wtih visual processing problems as well. These discoveries have led to a resurgence in visual methods of treatment, which have shown promisingresults.''Visual aspects of dyslexia'' brings together cutting edge research from a range of disciplines - including neurology, neuroscience, and the vision sciences, to present the first comprehensive review of this recent research. It includes chapters from leading specialists which, in addition to reporting on the latest research, show how this knowledge is being successfully applied in the development of effective visual treatments for this common problem. Sections within the book cover the role ofeye movements in reading, visual attention and reading, the neural bases of reading, and the relationship between visual stress and dyslexia.Making a valuable contribution in helping us develop a deeper understanding of dyslexia, this is an important book for those in the fields of psychology, neuroscience, and education.
Oxford Handbook of Ophthalmology
AvPhilip I. Murray,Alastair K. O. Denniston
E-bok
Engelska, 2018
542 kr
Läs direkt efter köp
Fully revised and updated throughout, the fourth edition of the Oxford Handbook of Ophthalmology now includes free access to the ophthalmic online media bank, a selection of high-quality clinical images and videos for a wide breadth of key ophthalmic diseases. Clear, concise, and practical, this handbook provides immediate access to the detailed clinical information you need, in casualty, clinic, theatre, and on the wards.The core of the book comprises a systematic synopsis of ophthalmic disease directed towards diagnosis, interim assessment, and ongoing management. Assessment boxes for common clinical conditions and algorithms for important clinical presentations illustrate this practical approach. The information is easily accessible, presented in a clear format with areas of importance highlighted. Key sections for the trainee include: Clinical Skills, Aids to Diagnosis, Investigations and their Interpretation, Perioperative Care, Theatre Notes and Therapeutics. The wider practise of eye-care is supported by expanded chapters on Refractive Ophthalmology, Vision in Context, Evidence Based Ophthalmology and Resources for Ophthalmologists.Now including newer treatments across a range of specialities such as SMILE, gene-therapy and retinal prostheses, as well as greater emphasis on the evidence underlying current clinical practice and guidelines, this handbook has never been more essential for all those working in eye-care. Whether you want to learn about patient-reported outcomes, identify a surgical instrument, interpret a statistical test, or diagnose and treat ophthalmic emergencies, you will find it here.Whatever your role in caring for patients with eye disease: ophthalmologist, optometrist, orthoptist, ophthalmic nurse, or other health profession - discover for yourself why this handbook has become the ''go-to'' resource for tens of thousands of eye-care professionals around the world.
Del 16 - Oxford Psychology Series
Visual Pattern Analyzers
AvNorma Van Surdam Graham
Inbunden, Engelska, 1989
1 696 kr
Skickas inom 5-8 vardagar
This book looks at lower level visual processing, emphasizing psychophysical experiments which measure the detection and identification of near-threshold patterns and the mathematical models used to draw inferences from experimental results. Neurophysiological and psychophysical evidence is compared and contrasted, while introductory material on psychophysical methods, signal detection theory, and the mathematics of Fourier analysis ensure that the title is accessible to anyone interested in this field. Also included are lists of studies about analysers and parametric sensitivity on various pattern-vision dimensions.
The Lighthouse Handbook on Vision Impairment and Vision Rehabilitation
Two-volume set
AvBarbara Silverstone,Bruce Rosenthalm. fl.
Inbunden, Engelska, 2000
5 466 kr
Skickas inom 7-10 vardagar
This comprehensive two-volume reference source is a state-of-the-art guide to the scientific, clinical, rehabilitative, and policy aspects of vision impairment and blindness. More than 100 original contributions from physicians, therapists, rehabilitation specialists, and policy makers cover everything from the basic science of vision and its diseases to assistive technologies, treatment, and care.
Retinal Detachment
Priniciples and Practice
AvDaniel A. Brinton,Charles P. Wilkinson
Inbunden, Engelska, 2009
2 601 kr
Skickas inom 5-8 vardagar
Retinal Detachment: Principles and Practice provides a historical review of current information on the diagnosis and treatment of retinal detachment. It is intended as both an introduction for graduate students in ophthalmology and a concise review or reference for practicing ophthalmologists. The volume defines the types of retinal detachments, their classifications and causes, and covers preoperative examination, preoperative management, prophylactic procedures, surgery, complications of surgery, and results of reattachment surgery. It also includes a historical introduction, suggested readings at the end of each chapter, and the classic article 'The Technique of Binocular Indirect Ophthalmoscopy,' by Morten L. Rosenthal.
Evolution's Witness
How eyes evolved
AvIvan R. Schwab
Inbunden, Engelska, 2012
1 633 kr
Skickas inom 7-10 vardagar
With predation and carnivory as catalysts, the first known eye appeared in a trilobite during the Cambrian explosion approximately 543 million years ago. This period was a crucible of evolution and teemed with anatomic creativity although the journey to formed vision actually began billions of years before that. The Cambrian period, however, spawned nearly all morphologic forms of the eye, followed by descent over hundreds of millions of years providing an unimaginable variety of eyes with at least ten different designs. Some eyes display spectacular creativity with mirror, scanning or telephoto optics. Some of these ocular designs are merely curiosities, while others offer the finest visual potential packed into a small space, limited only by the laws of diffraction or physiological optics. For example, some spiders developed tiny, well-formed eyes with scanning optics and three visual pigments; scallops have 40-100 eyes circling their mantle, each of which has mirror optics and contains two separate retinae per eye; deep ocean fish have eyes shaped like tubes containing yellow lenses to break camouflage; and some birds have vision five times better than ours; but this is only part of the story. Each animal alive today has an eye that fits is niche perfectly demonstrating the intimacy of the evolutionary process as no other organ could. The evolution of the eye is one of the best examples of Darwinian principles.Although few eyes fossilize in any significant manner, many details of this evolution are known and understood. From initial photoreception 3.75 billion years ago to early spatial recognition in the first cupped eyespot in Euglena to fully formed camera style eyes the size of beach balls in ichthyosaurs, animals have processed light to compete and survive in their respective niches.It is evolution's greatest gift and its greatest triumph. This is the story of the evolution of the eye.
Aniridia and WAGR Syndrome
A Guide for Patients and Their Families
AvNERBY,Nerbym. fl.
Inbunden, Engelska, 2010
1 013 kr
Skickas inom 5-8 vardagar
Our hope is to enlighten and encourage those affected by aniridia and WAGR Syndrome by providing patient support and medical information. There is information to inform parents, teachers, doctors, employers, and the public about aniridia and what it is like to live with it. Several renowned doctors contribute medical chapters. Personal experiences from individuals with aniridia and parents with children with aniridia provide encouragement. Contact information for Aniridia Foundation International (AFI) is included. When a child is born without a complete iris, it is usually a symptom of a broader condition. Known as aniridia, this condition can also be a sign other parts of the eye are underdeveloped as well. Moreover, recent research shows that the gene involved can also affect the kidneys, pancreas and forebrain, so aniridia can coincide with a range of symptoms known as WAGR syndrome. Until recently, however, there was very little information available on aniridia and WAGR Syndrome. Even now, not all of the available information is current or correct, so that when a child is diagnosed with aniridia, the parents often find or are given information that is confusing and even frightening. We created this book to help those families see that they are not alone, and there are a lot of answers and a great deal of hope. It contains information about aniridia and WAGR Syndrome for parents, other family members, friends, teachers, doctors, and employers. We have been very fortunate to have several renowned doctors contribute current and comprehensive medical information that will help to provide concrete answers to basic questions and demystify these conditions. The book has many personal stories from individuals and parents that will help to give a more complete picture of what it is like to live with aniridia and WAGR Syndrome and provide encouragement and comfort. It also contains information about where to go for more answers and support, including the Aniridia Foundation International (AFI), http://www.aniridia.net, a non-profit organization created by one of the authors, Jill Nerby. We hope that you will read this book and join us in creating a better future for those with aniridia and WAGR Syndrome.
Visual Fields
AvWALSH,Thomas Walsh
Inbunden, Engelska, 2010
2 971 kr
Skickas inom 5-8 vardagar
This third edition of Visual Fields: Examination and Interpretation contains revisions and updates of earlier material as well as a discussion of newer techniques for assessing visual field disorders. The book begins with a short history of the field of perimetry and goes on to present basic clinical aspects of examination and diagnosis of visual field defects in the optic nerve, optic disc, chorioretina, optic chiasm, optic tract, lateral geniculate field bodies, and the calcarine complex. Additional aspects of visual field examination are explored including those of monocular, binocular, and junctional field defects, congruity vs. incongruity, macular sparing vs. macular splitting, density, wedge-shaped homonymous field loss, and monocular temporal crescent. Various new techniques of automated perimetry are also considered including SITA, FASTPAC, and SWAP. In all, this volume provides a very useful overview of the techniques, both old and new, of visual field examination in a multiplicity of eye disorders and as such will be of interest to all ophthalmologists, neuro-opthalmologists, retina specialists, and optomestrist.
Oxford American Handbook of Ophthalmology
AvJames Tsai,Alastair Dennistonm. fl.
Häftad, Engelska, 2011
1 230 kr
Skickas inom 5-8 vardagar
In a concise and contemporary new edition, the Oxford American Handbook of Ophthalmology offers highly practical yet evidence-based guidance on the diagnosis and management of ophthalmic disorders. Incorporating a systematic approach, the authors present common and/or important manifestations of the full spectrum of eye diseases. Included are useful summaries of common signs and symptoms, etiologies, diagnostic testing, and therapeutic regimens, as well as information on pre-, peri-, and post-operative eye care. The Oxford American Handbook should prove useful and relevant to residents and fellows in ophthalmology, as well as medical students, primary care physicians, comprehensive ophthalmologists, and other ophthalmic personnel, all who seek a ready reference for daily clinical practice and review.
Genetic Diseases of the Eye
AvElias I. Traboulsi,Virginia Miraldi Utzm. fl.
Inbunden, Engelska, 2025
4 810 kr
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This highly anticipated third edition brings together an expert group of authors to provide a comprehensive, systematic resource on genetic diseases of the eye. The richly illustrated volume covers every area in ophthalmology such as: malformations, refractive errors, the cornea, glaucoma and cataracts, retina and the optic nerve, eye movement disorders, systemic diseases of the eye, and more. What remains at the core of the book is a sound clinical approach to the patient with genetic diseases that affects the eye. Every chapter emphasizes the clinical aspects of diseases and ties them to underlying molecular mechanisms and outlines current therapy.This new edition continues to assemble the visionary work and technology that contributors from around the world have accomplished in this exciting field. In addition to updating all 52 original chapters, this 3rd edition contains Contains new chapters covering epidemiology and counseling, vision rehabilitation, embryology and development, genetics of eye conditions, diagnostic and imaging techniques, specific genetic disorders, and patient-reported outcomes. These new chapters provide comprehensive insights into the latest advancements and methodologies in the field; this last chapter to delve into basic genetic counseling. These updates and additions will continue to make Genetic Diseases of the Eye the most important reference for students, specialists, and clinical researchers in the fields of genetics and ophthalmology.

Optometri / optiker

Osynlig diagnos

Wills Eye Manual: Print + eBook with Multimedia

Clinical Anatomy and Physiology of the Visual System

Contact Lens Practice

Oxford Handbook of Ophthalmology

Clinical Management of Binocular Vision

Kanski's Synopsis of Clinical Ophthalmology

Optometrist

Ryan's Retina

Dry Eye Disease

Schaum's Outline of Optics

Schaum's Outline of Optics

Primary Care of the Posterior Segment, Third Edition

Geometrical and Visual Optics, Second Edition

Lange Q&A Optometry Review: Basic and Clinical Sciences

Vision in Vehicles VII

Progress in Optics

Fundamentals of Optical Waveguides

System for Ophthalmic Dispensing

Visual Aspects of Dyslexia

Visual Aspects of Dyslexia

Oxford Handbook of Ophthalmology

Visual Pattern Analyzers

The Lighthouse Handbook on Vision Impairment and Vision Rehabilitation

Retinal Detachment

Evolution's Witness

Aniridia and WAGR Syndrome

Visual Fields

Oxford American Handbook of Ophthalmology

Genetic Diseases of the Eye