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Books > Medicine > Clinical & internal medicine > Ophthalmology

OCT Angiography (Hardcover): Sanja Sefic Kasumovic OCT Angiography (Hardcover)
Sanja Sefic Kasumovic
R4,232 Discovery Miles 42 320 Ships in 12 - 19 working days

This highly-illustrated, concise, but detailed, monograph represents a handy guide through the OCTA technique while examining various retinal diseases, as well as pathology of the optic nerve. It also includes descriptions of the epidemiology, etiology, clinical signs and symptoms, as well as diagnostic and treatment possibilities for every entity described.

Oxford Handbook of Ophthalmology (Paperback, 4th Revised edition): Alastair K. O. Denniston, Philip I. Murray Oxford Handbook of Ophthalmology (Paperback, 4th Revised edition)
Alastair K. O. Denniston, Philip I. Murray
R1,285 Discovery Miles 12 850 Ships in 12 - 19 working days

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.

Atlas of the Slitlamp-Microscopy of the Living Eye - Technic and Methods of Examination (Paperback, Softcover reprint of the... Atlas of the Slitlamp-Microscopy of the Living Eye - Technic and Methods of Examination (Paperback, Softcover reprint of the original 1st ed. 1921)
Alfred Vogt, Robert von der Heydt
R1,507 Discovery Miles 15 070 Ships in 10 - 15 working days

The introduction of the slitlamp of Gullstrand has opened to ophthalmology an entirely new field for clinical observation and diagnosis. It has created what may be . termed an "Histology of the living eye". . Normal and pathologie conditions heretofore established only anatomically can be directly observed in the living eye. lt shows us not only structures that are known, but in addition aseries of observations on histological details, heretofore impossible. These structures, owing partly to their delicacy. , were formerly sacrificed in the process of fixation, or it was impossible to further differentiate them by any method of staining. For instance, we have up to the present failed of anatomical proof of the numerous physiologio remnants of the tunica vasculosa lentis, the arteria hyaloidea, the various intricacies of the framework supporting the vitreous body, types of Jens sclerosis, eto. , but the number of facts already known as a result of anatomical research which have hitherto evaded clinical confirmation, is far greater, The slitlamp, in combination with the corneal microscope, perinits us to observe the living endothelium on the posterior surface of the cornea. Every individual endo- thelial cell on Descemet's membrane, as well as each pathologically deposited lympho- eyte is revealed. The nerve fibres of the cornea can be traced to their very finest ramifications. In Deseemet's and Bowman's membranes we have observed pathological folds,' manifested by their charaeteristic reflexes.

OCT Atlas (Hardcover): SPS Grewal, Manpreet Brar, Mansi Sharma, Mangat Ram Dogra, Dilraj S Grewal OCT Atlas (Hardcover)
SPS Grewal, Manpreet Brar, Mansi Sharma, Mangat Ram Dogra, Dilraj S Grewal
R6,515 Discovery Miles 65 150 Ships in 12 - 19 working days

Optical coherence tomography (OCT) is a non-invasive imaging test that uses light waves to take cross-sectional pictures of the retina, the light-sensitive tissue lining the back of the eye (eyeSmart). The technique is recognised worldwide as an essential device for diagnosis, assessment and follow up of retinal diseases and glaucoma. This atlas provides ophthalmologists and trainees with a collection of OCT images to help with the identification, diagnosis and subsequent treatment of common retinal and anterior segment disorders. The images are compiled from the authors' own collections using Plex Elite and Cirrus 6000 technology. Fundus angiography images assist with the understanding of related pathologies. Divided into two sections, the book begins with images illustrating the normal fundus, then numerous different retinal disorders including diabetic retinopathy, macular disorders, retinal detachment, uveitis and toxicities. Section two covers anterior segment disorders, beginning with images of the normal cornea, then illustrating a range of disorders including corneal dystrophies, ocular surface disorders, keratoconus, glaucoma, and trauma. Each section features a multitude of images, each with brief descriptive text.

The Massachusetts Eye and Ear Infirmary Illustrated Manual of Ophthalmology (Paperback, 5th edition): Neil J. Friedman, Peter... The Massachusetts Eye and Ear Infirmary Illustrated Manual of Ophthalmology (Paperback, 5th edition)
Neil J. Friedman, Peter K. Kaiser, Roberto Pineda II
R2,110 Discovery Miles 21 100 Ships in 12 - 19 working days

Offering current diagnostic and therapeutic guidance to manage ocular disorders, The Massachusetts Eye and Ear Infirmary Illustrated Manual of Ophthalmology, 5th Edition, remains the most comprehensive ophthalmology manual available. It provides practical information for efficient diagnosis and treatment decisions in a succinct, quick-reference format. Lavishly illustrated with more than 700 full-color images, this outstanding manual covers clinical descriptions, imaging and testing methods, treatment guidelines, and more, making it useful for ophthalmologists, optometrists, and ophthalmic allied health professionals. Utilizes a highly templated format that includes chapters organized anatomically, in addition to key boxes and highlighted emergency management boxes. Features new sections on infectious uveitis, refractive procedures, toxic maculopathies, color blindness, limbal stem cell deficiency, neurotrophic keratitis, Terson syndrome, age-related choroidal atrophy, Norrie disease, Aicardi's syndrome, and many others. Includes new images throughout, including OCTA images, as well as two new videos on ocular motility testing and one-and-a-half syndrome. Provides diagnostic and therapeutic updates on dry eye, diabetic retinopathy, age-related macular degeneration, hereditary retinal diseases, ocular tumors, idiopathic intracranial hypertension, and more. Contains bonus appendices that provide a wealth of supplemental information helpful for the non-specialist, including guidance on the basics in examination methods, differential diagnosis, common medications, abbreviations, measurements and more. 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.

Normal Binocular Vision - Theory, Investigation and Practical Aspects (Paperback): D Stidwill Normal Binocular Vision - Theory, Investigation and Practical Aspects (Paperback)
D Stidwill
R1,666 Discovery Miles 16 660 Ships in 12 - 19 working days

Binocular vision, i.e. where both eyes are used together, is a fundamental component of human sight. It also aids hand-eye co-ordination, and the perception of the self within the environment. Clinical anomalies pose a wide range of problems to the sufferer, but normal binocular operation must first be understood before the eye specialist can assess and treat dysfunctions.

This is a major new textbook for students of optometry, orthoptics and ophthalmology, and also of psychology. Chapters span such key topics as binocular summation, fusion, the normal horopter, anatomy of the extra-ocular muscles, oculomotor control, binocular integration and depth perception.

Fully illustrated throughout, the book includes self-assessment exercises at the end of each chapter, and sample experiments in binocular vision functioning.

Eyelid Reconstruction (Hardcover): Suzanne K. Freitag, Nahyoung Grace Lee, Daniel R. Lefebvre, Michael K. Yoon Eyelid Reconstruction (Hardcover)
Suzanne K. Freitag, Nahyoung Grace Lee, Daniel R. Lefebvre, Michael K. Yoon
R2,009 Discovery Miles 20 090 Ships in 12 - 19 working days

Highly practical eyelid surgery resource informs important reconstruction decisions and strategies Skin malignancies frequently affect the periocular area, necessitating excision followed by eyelid reconstruction. Periocular trauma is also quite common, and because of the highly complex regional anatomy, requires expertise for effective reconstruction. Preparation by ophthalmic plastic surgeons prior to periorbital reconstruction is often not possible due to the unpredictability of defects left after Mohs micrographic surgeons clear tumor margins or in cases of trauma. Eyelid Reconstruction by renowned expert Suzanne Freitag and esteemed coeditors N. Grace Lee, Daniel Lefebvre, and Michael Yoon fills a void in the literature. The book provides a quick and practical ophthalmic plastic surgery guide on how to plan and perform a full spectrum of periocular reconstruction procedures. The textbook is a compilation of patient cases and the authors' vast, richly diverse expertise. The book starts with two chapters covering complex periorbital anatomy and basic surgical principles, both of which are critical to performing safe and effective surgery. The third chapter provides a comprehensive overview of Mohs surgery in the periorbital area, an important topic given many defect reconstructions are secondary to Mohs micrographic surgical excisions. Subsequent chapters, organized by anatomic region, feature discussion of surgical approaches for reconstructions of various size and depth defects. The final chapter details eyelid trauma repair, including lid margin and lacrimal lacerations. Key Features An essential go-to pre- or peri-operative reference surgeons can consult quickly as reconstruction cases arise Practical and concise procedural descriptions accompanied by numerous high-quality photographs and illustrations enhance comprehension Chapters dedicated to medial canthus, lower eyelid, upper eyelid, and lateral canthus reconstruction procedures discuss special considerations based on underlying anatomy, adnexal structures, and required functions This is a must-have resource for residents, fellows, and experienced surgeons in the fields of ophthalmic plastic surgery, ophthalmology, otolaryngology, facial plastic surgery, plastic surgery, dermatology, Mohs surgery, and maxillofacial surgery. This book includes complimentary access to a digital copy on https://medone.thieme.com.

Eye Pathology - An Atlas and Text (Hardcover, 3rd edition): Ralph C. Eagle Eye Pathology - An Atlas and Text (Hardcover, 3rd edition)
Ralph C. Eagle
R5,506 Discovery Miles 55 060 Ships in 12 - 19 working days

Master the eye pathology you need to know for the OKAP exam, residency, and beyond! Here's a perfect introduction to basic eye pathology that can easily be read and mastered during an ophthalmic pathology rotation. It provides effective, efficient preparation for OKAP examinations or Board certification in ophthalmology, and will also serve as a concise clinical reference in practice. Richly illustrated and masterfully written, this best-selling ophthalmology resource equips you to understand eye pathology. Key Features: Identify ocular diseases and disorders with the aid of more than 750 high-quality color illustrations. Master the latest knowledge in the field with thorough updates on abusive head trauma; spectral domain optical coherence tomography (SD-OCT); the revised IC3D classification of corneal dystrophies; IgG4-related disease; the genetics of melanoma and retinoblastoma; interpretation of lamellar keratoplasty specimens from DALK, DSEK, and refractive surgical procedures; ;; immunohistochemistry; and much more. Gauge your mastery of the material with more than 650 multiple-choice review questions online. Now with the print edition, enjoy the bundled interactive eBook edition , offering tablet, smartphone, or online access to: Complete content with enhanced navigation A powerful search that pulls results from content in the book, your notes, and even the web Cross-linked pages , references, and more for easy navigation Highlighting tool for easier reference of key content throughout the text Ability to take and share notes with friends and colleagues Quick reference tabbing to save your favorite content for future use

Practical Handbook of OCT - (Retina, Choroid, Glaucoma) (Paperback, 3rd Revised edition): Marco Rispoli, Maria Cristina... Practical Handbook of OCT - (Retina, Choroid, Glaucoma) (Paperback, 3rd Revised edition)
Marco Rispoli, Maria Cristina Savastano, Bruno Lumbroso
R2,947 Discovery Miles 29 470 Ships in 9 - 17 working days

Optical coherence tomography (OCT) is a non-invasive imaging test that uses light waves to take cross-sectional pictures of the retina, the light-sensitive tissue lining the back of the eye (eyeSmart). The technique is recognised worldwide as an essential device for diagnosis, assessment and follow up of retinal diseases and glaucoma. The third edition of this comprehensive manual has been fully revised to provide clinicians and trainees with the most recent advances in OCT imaging. New examination and diagnostic protocols are covered in depth and this edition includes a step by step guide to data interpretation. Divided into three sections, the book begins with discussion on interpretation of OCT images, including 'en face' and dyeless angiography. The second section covers lesions and diseases, and part three explains new syndromes and classifications. Highly illustrated with clinical images and tables, this practical reference has been written by renowned experts based in Italy. Key points Practical guide to recent advances in OCT imaging Fully revised, new edition covers new examination and diagnostic protocols, with step by step guide to data interpretation Internationally recognised, Italy-based author team Previous edition (9789351525318) published in 2014

Understanding Vision - Theory, Models, and Data (Paperback): Li Zhaoping Understanding Vision - Theory, Models, and Data (Paperback)
Li Zhaoping
R1,310 Discovery Miles 13 100 Ships in 12 - 19 working days

While the field of vision science has grown significantly in the past three decades, there have been few comprehensive books that showed readers how to adopt a computional approach to understanding visual perception, along with the underlying mechanisms in the brain. Understanding Vision explains the computational principles and models of biological visual processing, and in particular, of primate vision. The book is written in such a way that vision scientists, unfamiliar with mathematical details, should be able to conceptually follow the theoretical principles and their relationship with physiological, anatomical, and psychological observations, without going through the more mathematical pages. For those with a physical science background, especially those from machine vision, this book serves as an analytical introduction to biological vision. It can be used as a textbook or a reference book in a vision course, or a computational neuroscience course for graduate students or advanced undergraduate students. It is also suitable for self-learning by motivated readers. in addition, for those with a focused interest in just one of the topics in the book, it is feasible to read just the chapter on this topic without having read or fully comprehended the other chapters. In particular, Chapter 2 presents a brief overview of experimental observations on biological vision; Chapter 3 is on encoding of visual inputs, Chapter 5 is on visual attentional selection driven by sensory inputs, and Chapter 6 is on visual perception or decoding. Including many examples that clearly illustrate the application of computational principles to experimental observations, Understanding Vision is valuable for students and researchers in computational neuroscience, vision science, machine and computer vision, as well as physicists interested in visual processes.

Eyelid, Conjunctival, and Orbital Tumors: An Atlas and Textbook (Hardcover, 3rd edition): Jerry A. Shields, Carol L. Shields Eyelid, Conjunctival, and Orbital Tumors: An Atlas and Textbook (Hardcover, 3rd edition)
Jerry A. Shields, Carol L. Shields
R9,857 Discovery Miles 98 570 Ships in 12 - 19 working days

Selected as a Doody's Core Title for 2022! For outstanding visual clarity in ocular diagnosis ... nothing else comes close. In this updated and revised third edition, world-renowned authorities from the Wills Eye Hospital provide outstanding guidance on recognition, evaluation, and treatment of ocular tumors, highlighted by more than 3,000 stunning photographs and surgical drawings. This unsurpassed ocular oncology resource is a comprehensive guide to the clinical features, diagnosis, management, and pathology of eyelid, conjunctival, and orbital tumors and pseudotumors, depicting clinical variations, treatment and histopathologic characteristics of the wide spectrum of neoplasms and related lesions. Now brought thoroughly up to date with recent clinical and scientific innovations, this unique volume offers more high-quality images than any other text/atlas in the field. Presents each entity in an easy-to-follow format: a concise description with references on the left-hand page and six illustrations on the right-hand page. Depicts in precise photographic detail the gross and microscopic features that distinguish each type of lesion, while professional drawings and intraoperative photographs demonstrate key surgical principles and procedures. Includes numerous new references regarding diagnosis and treatment, as well as new scientific tables containing key information for your clinical practice. Features 25% new images, including panoramic images, surgical images, diagnostic testing images from multiple modalities, and updated, high resolution MRI and CT scans. Covers new information on evolving conditions such as IgG4 orbital inflammatory disease, solitary fibrous tumor of the orbit, and lymphoid proliferations of the orbit, conjunctiva, and globe; as well as new methods of nonsurgical therapy such as topical chemotherapy, intravenous chemotherapy, and immunotherapy and biological therapy with Rituxan for lymphoma; and new information on classification of various tumors and expected outcomes are clearly displayed in table format. Now with the print edition, enjoy the bundled interactive eBook edition, which can be downloaded to your tablet and smartphone or accessed online and includes features like: Complete content with enhanced navigation Powerful search tools and smart navigation cross-links that pull results from content in the book, your notes, and even the web Cross-linked pages, references, and more for easy navigation Highlighting tool for easier reference of key content throughout the text Ability to take and share notes with friends and colleagues Quick reference tabbing to save your favorite content for future use

Curiosities in Medicine - Alphabetically (Hardcover, 1st ed. 2023): Sibylle Scholtz, Myriam Becker, Lee MacMorris, Achim... Curiosities in Medicine - Alphabetically (Hardcover, 1st ed. 2023)
Sibylle Scholtz, Myriam Becker, Lee MacMorris, Achim Langenbucher
R1,459 Discovery Miles 14 590 Ships in 9 - 17 working days

This anthology is devoted to the curious side of Medical History. Carl Sagan said: "You have to know the past to understand the present." This collection of 80 short stories, written by experts in the field, inspires curiosity and provides a detailed look at the History of Medicine. It investigates many topics, including ancient Egyptian knowledge, the fundamental importance of toothache and how it birthed Anesthesia, and why and when women were allowed to run marathons. The authors report on the background of rubber gloves, the stethoscope and the intraocular lens. Historically important biographies are included, such as those of Arthur Conan Doyle, Napoleon Bonaparte and Claude Monet. The book is relevant for those interested in Medicine and its curious history.

Polymyalgia Rheumatica and Giant Cell Arteritis (Paperback): Bhaskar DasGupta, Christian Dejaco Polymyalgia Rheumatica and Giant Cell Arteritis (Paperback)
Bhaskar DasGupta, Christian Dejaco
R1,529 Discovery Miles 15 290 Ships in 12 - 19 working days

Polymyalgia rheumatica (PMR) and giant cell arteritis (GCA) are related conditions occurring almost exclusively in older people. Polymyalgia rheumatica is considered to be the rheumatic disease that is subject to the widest variations of clinical practice, partially due to the considerable uncertainty related to diagnosis and outcomes. Giant cell arteritis, an inflammatory form of vasculitis, may present with a broad spectrum of clinical manifestations and can be complicated by acute ischemic events, the most serious of which is permanent blindness. Early recognition and adequate treatment of the condition is thus necessary to prevent patients' loss of independence and to maintain their quality of life. Part of the Oxford Rheumatology Library series, Polymyalgia Rheumatica and Giant Cell Arteritis provides quick and practically relevant information on several aspects of the diseases, particularly on diagnosis and management, with the ultimate aim of improving the patient's care. Chapters highlight current concepts of pathogenesis, recent advances of diagnostic and therapeutic approaches, and the ongoing research into the identification of new biomarkers and corticosteroid-sparing medications. Each chapter is complemented with key message boxes highlighting the most relevant information for clinical practice. This concise but comprehensive reference is particularly suited for rheumatologists, general practitioners, and other professionals caring for patients with PMR and GCA.

Glaucoma - 2-Volume Set (Hardcover, 2nd edition): Tarek Shaarawy, Mark B. Sherwood, Roger A. Hitchings, Jonathan G. Crowston Glaucoma - 2-Volume Set (Hardcover, 2nd edition)
Tarek Shaarawy, Mark B. Sherwood, Roger A. Hitchings, Jonathan G. Crowston
R7,999 Discovery Miles 79 990 Ships in 12 - 19 working days

As the irreversible effects of glaucoma can lead to blindness, there is high demand for early diagnosis and an ongoing need for practitioners to adopt new and evolving medical and surgical treatment options to improve patient outcomes. Glaucoma, Second Edition is the most comprehensive text and online resource in the field delivering expert guidance for the most timely and effective diagnosis and treatment of glaucoma - aimed at specialists, fellows and general ophthalmologists. More than 300 contributors from six continents provide a truly global perspective and explore new approaches in this user friendly reference which has been updated with enhanced images, more spotlights, new videos, and more. "...this two-volume glaucoma textbook is of outstanding quality in any respect...It truly deserves wide distribution amongst general ophthalmologists and glaucoma experts alike." Reviewed by Graefes Arch Clin Exp Ophthalmol, Oct 2014 Get all the accuracy, expertise, and dependability you could ask for from leading specialists across six continents, for expert guidance and a fresh understanding of the subject. Develop a thorough, clinically relevant understanding of all aspects of adult and pediatric glaucoma in Volume One, and the latest diagnostic imaging techniques including ultrasound biomicroscopy and optical coherence tomography. Broaden your surgical repertoire with the latest surgical techniques - such as trabeculectomy, gonio-surgery, combined surgeries, and implant procedures - in Volume Two. Glean all essential, up-to-date, need-to-know information about stem cell research, gene transfer, and implants. Find answers fast thanks to a well-organized, user-friendly full-color layout. Access the complete contents online at Expert Consult. Stay at the forefront of your field with 10 brand new chapters on trending topics including: new surgical approaches such as trabectome and canoplasty; glaucoma implications in cataract and ocular surface disease; and, updates in the costs-effectiveness of medical management. Avoid pitfalls and achieve the best outcomes thanks to more than 40 brand new spotlight commentaries from key leaders providing added insight, tips and pearls of wisdom across varying hot topics and advances in the field. Refine and improve your surgical skills by watching over 50 video clips depicting the latest techniques and procedures including: new trabeculectomy methods, needling, implants, valve complications, and more. Prevent and plan for complications in advance by examining over 1,600 illustrations, photos and graphics (1,250 in color) capturing essential diagnostics techniques, imaging methods and surgical approaches. Grasp each procedure and review key steps quickly with chapter summary boxes that provide at-a-glance quick comprehension of the key take away points. Your purchase entitles you to access the web site until the next edition is published, or until the current edition is no longer offered for sale by Elsevier, whichever occurs first. If the next edition is published less than one year after your purchase, you will be entitled to online access for one year from your date of purchase. Elsevier reserves the right to offer a suitable replacement product (such as a downloadable or CD-ROM-based electronic version) should online access to the web site be discontinued.

The Oxford Handbook of Eye Movements (Paperback): Simon Liversedge, Iain Gilchrist, Stefan Everling The Oxford Handbook of Eye Movements (Paperback)
Simon Liversedge, Iain Gilchrist, Stefan Everling
R3,101 Discovery Miles 31 010 Ships in 12 - 19 working days

In the past few years, there has been an explosion of eye movement research in cognitive science and neuroscience. This has been due to the availability of 'off the shelf' eye trackers, along with software to allow the easy acquisition and analysis of eye movement data. Accompanying this has been a realisation that eye movement data can be informative about many different aspects of perceptual and cognitive processing. Eye movements have been used to examine the visual and cognitive processes underpinning a much broader range of human activities, including, language production, dialogue, human computer interaction, driving behaviour, sporting performance, and emotional states. Finally, in the past thirty years, there have been real advances in our understanding of the neural processes that underpin eye movement behaviour. The Oxford Handbook of Eye Movements provides the first comprehensive review of the entire field of eye movement research. In over fifty chapters, it reviews the developments that have so far taken place, the areas actively being researched, and looks at how the field is likely to devlop in the coming years. The first section considers historical and background material, before moving onto section 2 on the neural basis of eye movements. The third and fourth sections looks at visual cognition and eye movements and eye movement pathology and development. The final sections consider eye movements and reading and language processing and eye movements. Bringing together cutting edge research from and international team of leading psychologists, neuroscientists, and vision researchers, this book is the definitive reference work in this field.

Evolution's Witness - How eyes evolved (Hardcover): Ivan R. Schwab Evolution's Witness - How eyes evolved (Hardcover)
Ivan R. Schwab
R3,374 Discovery Miles 33 740 Ships in 12 - 19 working days

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.

Practical Approach to Glaucoma - Case Based (Hardcover): Ramanjit Sihota Practical Approach to Glaucoma - Case Based (Hardcover)
Ramanjit Sihota
R2,066 Discovery Miles 20 660 Ships in 12 - 19 working days
The Oxford Handbook of Eye Movements (Hardcover, New): Simon Liversedge, Iain Gilchrist, Stefan Everling The Oxford Handbook of Eye Movements (Hardcover, New)
Simon Liversedge, Iain Gilchrist, Stefan Everling
R4,718 Discovery Miles 47 180 Ships in 12 - 19 working days

In the past few years, there has been an explosion of eye movement research in cognitive science and neuroscience. This has been due to the availability of 'off the shelf' eye trackers, along with software to allow the easy acquisition and analysis of eye movement data. Accompanying this has been a realisation that eye movement data can be informative about many different aspects of perceptual and cognitive processing. Eye movements have been used to examine the visual and cognitive processes underpinning a much broader range of human activities, including, language production, dialogue, human computer interaction, driving behaviour, sporting performance, and emotional states. Finally, in the past thirty years, there have been real advances in our understanding of the neural processes that underpin eye movement behaviour.
The Oxford Handbook of Eye Movements provides the first comprehensive review of the entire field of eye movement research. In over fifty chapters, it reviews the developments that have so far taken place, the areas actively being researched, and looks at how the field is likely to devlop in the coming years. The first section considers historical and background material, before moving onto section 2 on the neural basis of eye movements. The third and fourth sections looks at visual cognition and eye movements and eye movement pathology and development. The final sections consider eye movements and reading and language processing and eye movements.
Bringing together cutting edge research from and international team of leading psychologists, neuroscientists, and vision researchers, this book is the definitive reference work in this field.

50 Studies Every Ophthalmologist Should Know (Paperback): Alan Penman, Kimberley Crowder 50 Studies Every Ophthalmologist Should Know (Paperback)
Alan Penman, Kimberley Crowder; Series edited by Michael E. Hochman; William M Watkins
R1,800 Discovery Miles 18 000 Ships in 10 - 15 working days

50 Studies Every Ophthalmologist Should Know presents key studies that have shaped the practice of ophthalmology. Selected using a rigorous methodology, emphasis has been placed on landmark studies which have influenced current ophthalmology practice guidelines. For each study, a concise summary is presented with an emphasis on the results and limitations of the study, and its implications for practice. An illustrative clinical case concludes each review, followed by brief information on other relevant studies. This book is a must-read for ophthalmologists, especially those in training or preparing for board review, as well as anyone who wants to learn more about the data behind clinical practice.

Eye Surgery in Hot Climates (Paperback, 4th Revised edition): William Dean, John Sandford-Smith Eye Surgery in Hot Climates (Paperback, 4th Revised edition)
William Dean, John Sandford-Smith
R1,341 Discovery Miles 13 410 Ships in 12 - 19 working days

This well-known guide to eye surgery in resource poor countries focuses on the management of common and blinding diseases, notably the surgical treatment of cataract, glaucoma and the eyelid complications of trachoma. The book describes simple, cost effective procedures appropriate to low income countries such as intra-ocular lenses, the use of which has become more widespread since the last edition. Introductory chapters on basic principles such as theatre equipment and anaesthesia are followed by chapters devoted to specific procedures such as cataract surgery, eyelid surgery and enucleation. Also included are chapters on paediatric surgery and trauma. Thoroughly revised and updated, Eye Surgery in Hot Climates Fourth Edition continues to provide relevant, practical advice for health care providers caring for eye patients in nations where blindness and visual impairment remain prevalent. All chapters revised and updated to reflect latest best practice Includes two completely new chapters on surgical training and paediatric surgery Includes DVD featuring instructional videos of cataract surgery, trabeculectomy and lid surgery for trachoma

Advances in Understanding Mechanisms and Treatment of Infantile Forms of Nystagmus (Hardcover): R.John Leigh, Michael W.... Advances in Understanding Mechanisms and Treatment of Infantile Forms of Nystagmus (Hardcover)
R.John Leigh, Michael W. Devereaux
R3,991 Discovery Miles 39 910 Ships in 12 - 19 working days

This volume brings together work from leading researchers in the fields of developmental disorders of binocular vision, strabismus, and both infantile and acquired forms of nystagmus. It contains four sections. The first section, Basic Concepts of Stable Vision and Gaze, deals with psychophysical aspects of infantile forms of nystagmus and the relative contributions of extraocular proprioception and efference (corollary discharge). It also contains an accessible review of current notions of spatial and temporal visual functions and spatial constancy in infantile nystagmus syndrome and latent nystagmus. The second section, New Models and Techniques for Studying Gaze Stability, reviews animal and development models for strabismus, amblyopia, and nystagmus. It also contains novel optical methods for managing the visual consequences of nystagmus and a study of the potential ill effects of video displays on children's response to near viewing. The third section, New Therapies for Congenital Nystagmus, presents basic genetic studies and clinical trials of drug and surgical treatment of those patients with infantile forms of nystagmus. The final section, General Aspects of Normal and Abnormal Gaze Control, pulls together a range of contributions dealing with normal gaze control, infantile nystagmus, and acquired disorders of eye movements, including new treatment measures. This book will be a valuable resource for all scientists and practitioners interested in developmental disorders of vision.

Practical Visual Electrophysiological Examination (Hardcover, 1st ed. 2022): Ruifang Sui, Fu Tang, Minglian Zhang Practical Visual Electrophysiological Examination (Hardcover, 1st ed. 2022)
Ruifang Sui, Fu Tang, Minglian Zhang
R3,192 Discovery Miles 31 920 Ships in 12 - 19 working days

This book includes the concept, general summary and the equipment of the visual electrophysiological examination. It also covers the clinical application scope, diagnosis protocol, standardized operation steps, clinical report samples, and the key points of reading reports, etc. of visual evoked potential (VEP), electroretinogram (ERG), electrooculogram (EOG), multifocal VEP, multifocal ERG and other commonly used visual electrophysiological examinations. Typical clinical report examples of normal and abnormal waveforms are specially added, which is a highlight of this book and can help clinical technicians quickly grasp the key points of electrophysiological report reading.

Perfect Sight Without Glasses - The Cure Of Imperfect Sight By Treatment Without Glasses - Dr. Bates Original, First Book-... Perfect Sight Without Glasses - The Cure Of Imperfect Sight By Treatment Without Glasses - Dr. Bates Original, First Book- Natural Vision Improvement (Black & White Edition) (Paperback)
Clark Night; Ophthalmologist William H Bates, William H. Bates
R995 Discovery Miles 9 950 Ships in 9 - 17 working days

Dr. Bates 1st, Original book in Antique 1920 Print. (Black & White Edition) Includes 1st Edition 'The Cure Of Imperfect Sight By Treatment Without Glasses'. Five editions combined. All of W. H. Bates treatments and Dr. Bates Better Eyesight Magazine 'Page Two' of 132 Issues of his best Natural Eyesight Practices for every eye, vision condition; Myopia, Presbyopia, Astigmatism... Fundamental Treatments, Steps by Dr. Bates & Emily C. A. Lierman, Bates (Dr. Bates assistant, wife). Natural Methods by Bernarr MacFadden. Eyecharts. Ophthalmologist William H. Bates discovered Natural Eyesight Improvement, 'The Bates Method'. He discovered the true function of the eyes (visual system) and applied natural methods, relaxation to return the eyes, eye muscles to normal function for healthy eyes, clear vision. He cured; unclear close and distant vision, astigmatism, crossed/wandering eyes, cataracts, glaucoma & other eye conditions. Natural Eyesight Improvement was practiced years before Dr. Bates discovered it. It is the normal, natural function of the eyes. Dr. Bates book, magazines, method has been hidden from the public by eye doctors, opticians for over 100 years because this method works, is easy, anyone can learn and teach it, including children. It produces healthy eyes, clear vision and frees the patient from the need to purchase eyeglasses, drugs, unnecessary eye surgery. It can reverse, prevent cataracts and other eye conditions Includes 20 Printable, Color PDF E-Books - All of Ophthalmologist Bates, Clark Night's Paperback & Kindle books, All books listed on Dr. Bates Amazon Author's page listed below; + Perfect Sight Without Glasses, 'The Cure of Imperfect Sight by Treatment Without Glasses' by Dr. Bates. Photo Copy of the Original Antique Book Pages with Pictures. (Text version with additional Modern Treatments included.) + Original Antique Better Eyesight Magazine by Ophthalmologist William H. Bates - Photo copy of all his Original Magazine Pages in the 1900's Print. (Unedited, Full Set, 132 Magazine Issues-11 Years-July, 1919 to June, 1930.) Learn a variety of Natural Eyesight Improvement Treatments directly from the Original Eye Doctor that discovered and practiced this effective, safe, natural method + Better Eyesight Magazine by Ophthalmologist William H. Bates - (Unedited, Full Set -132 Magazine Issues - 11 Years-July, 1919 to June, 1930.) Illustrated with 500 Pictures and additional, up to date Modern Natural Eyesight Improvement Training. + Medical Articles by Dr. Bates - with Pictures. + Stories From The Clinic by Emily C. A. Lierman/Bates. (Dr. Bates Clinic Assistant, Wife.) + Use Your Own Eyes & Normal Sight Without Glasses by Dr. William B. MacCracken, M.D. (Trained with Dr. Bates.) + Strengthening The Eyes by Bernarr MacFadden, Dr. Bates - with Pictures & Modern Training. (Trained with Dr. Bates. One of the 1st Physical Fitness Teachers.) + EFT Training Booklet - with Acupressure, Energy balance-strengthening, Positive Emotions, Pictures. +Do It Yourself-Natural Eyesight Improvement-Original and Modern Bates Method. 100+ Color Pictures. Less reading; Easy to learn steps-read the short directions on the pictures to quickly learn, apply a treatment, activity for Fast Vision Improvement. + Clear Close Vision, Reading Fine Print Clear. + Ten Steps For Clear Eyesight +The Basics of Natural Eyesight Improvement. + Astigmatism Removal and other books. + Eyecharts Book with Training-15 Large, Small and Fine Print. Big C, E Charts for Close and Distant Vision, White and Black Letter Charts, Tumbling E Chart, Astigmatism Test and Removal Charts, Eyechart Video Lessons. Pass the driver's license eye exam. + Audio, Videos in Every Chapter - Learn a Treatment, Activity Quick and Easy. 100 Natural Eyesight Improvement Training Videos. See 'William H. Bates Author's Page' for Pictures, Videos, full description of the Paperback and 20 E-books; amazon.com/William-H.-Bates/e/B004H9DOBC/ref=ntt_athr_dp_pel_

Diabetic Retinopathy: Screening to Treatment (Paperback, 2nd Revised edition): Ramesh R. Sivaraj, Paul M. Dodson Diabetic Retinopathy: Screening to Treatment (Paperback, 2nd Revised edition)
Ramesh R. Sivaraj, Paul M. Dodson
R1,276 Discovery Miles 12 760 Ships in 12 - 19 working days

Diabetes mellitus is one of the leading causes of blindness worldwide, with diabetic retinopathy (DR) remaining the most common cause of eye disease for people with diabetes. Current guidelines state that all patients with diabetes should be screened for retinal problems. Diabetic Retinopathy, second edition, offers a practical, clinically focused guide to DR. Featuring 20 concise chapters this resource covers the basics of diabetes mellitus and ocular anatomy, why screening is required, the epidemiology and nature of diabetic retinopathy, as well as associated ocular diseases. It has been fully updated to include the latest trial data and newest developments in the management of diabetic retinopathy, as well as three new chapters covering patients of concern, imaging techniques in diabetic retinopathy, and an overview of treatment strategies for diabetic eye disease. Part of the Oxford Diabetes Library series, this pocketbook is a concise companion for professionals involved in screening and treating diabetic retinopathy.

Fundus Autofluorescence (Hardcover, 2nd edition): Noemi Lois, John V. Forrester Fundus Autofluorescence (Hardcover, 2nd edition)
Noemi Lois, John V. Forrester
R5,589 Discovery Miles 55 890 Ships in 12 - 19 working days

Make optimal use of fundus autofluorescence in your practice! Fundus Autofluorescence , by esteemed authorities Noemi Lois and John V. Forrester, explains everything you need to know about fundus autofluorescence (AF), from the basics of this powerful ocular imaging modality to the latest diagnostic and prognostic applications. A "who's who" of leading experts provide the up-to-date, clinically focused guidance you need to effectively evaluate a full range of posterior segment disorders. Master the latest AF techniques and applications with 35 brand-new chapters exploring vascular retinal diseases, posterior uveitis, intraocular tumors, and much more, plus comprehensive updates and enhancements throughout. Learn about the newest autofluorescence technologies, including wide-angle fundus autofluorescence, near-infrared autofluorescence and quantitative autofluorescence. Accurately diagnose posterior segment conditions. Get clear explanations of the science behind the synthesis and degradation of lipofuscin, the techniques available to image and quantify AF, the normal distribution of AF, and alterations occurring in a variety of posterior segment diseases. See plentiful examples of AF findings in each chapter, with clear explanations of the value of this imaging technique in the evaluation of patients and understanding of the pathogenesis of each condition depicted. Now with the print edition, enjoy the bundled interactive eBook edition, which can be downloaded to your tablet and smartphone or accessed online and includes features like: Complete content with enhanced navigation A powerful search that pulls results from content in the book, your notes, and even the web Cross-linked pages, references, and more for easy navigation Highlighting tool for easier reference of key content throughout the text Ability to take and share notes with friends and colleagues Quick reference tabbing to save your favorite content for future use

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