Download or read book History of Ophthalmology written by Harold E. Henkes and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: When the eyeball is indented in total darkness, within less than 200 mil liseconds an oval or quarter-moon shaped spot of light is perceived in the part of the visual field corresponding to the indented region of the retina. In the seconds following, this phosphene extends across the whole visual field and alters in structure during further eyeball indentation. It is then seen as irregular large bright spots of light, finely structured moving light grains ('light nebula') and stationary bright stars. Regular geometrical patterns appear only when both eyes are indented simultaneously [1]. When the eyeball deformation is released, part of the retina again lights up for another one or two seconds and curved light lines are seen following the course of the larger retinal vessels (Fig. 1). In the following we will review the history of this phenomenon, which played an important role during the first 2200 years of vision theories and in the development of models to explain normal vision. 2. Pre-Socratic philosophers, Plato and Aristotle Alcmaeon of Croton (6-5th century B. C. ), who was a member of the Pythagoraean sect and one of the founders of Greek medicine, was the first to describe mechanical deformation of the eyeball leading to light sensa tions. According to Aristotle's pupil Theophrast of Eresos, Alcmaeon report ed that 'the eye obviously has fire within,for when the eye is struckfireflashes out' [2, p. 88].

Download or read book The Columbia Guide to Basic Elements of Eye Care written by Daniel S. Casper and published by Springer. This book was released on 2019-07-01 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique resource is a practical, easy-to-use guide for the non-ophthalmologist healthcare provider as they encounter patients with eye complaints and other concerning ophthalmic conditions. The Columbia Guide to Basic Elements of Eye Care is specifically designed with the non-ophthalmologist in mind, and provides a foundation of basic eye anatomy and physiology, functional analysis, pathology, and concepts in eye care. Each chapter delivers an accessible summary of various ophthalmic diseases and conditions, all of which are frequently encountered in everyday practice. These chapters provide in-depth discussions on a wide range of topics, from testing and examination procedures to management protocols, referral guidelines and expected frequency of follow-up for each disorder. Complete with hundreds of high-quality, descriptive illustrations and clinical photographs, The Columbia Guide to Basic Elements of Eye Care presents clear, understandable explanations of basic eye anatomy, physiology, disease and treatment for non-ophthalmic practitioners and students. In doing so, this guide provides a framework for determining the normal versus the abnormal, helping the reader recognize which patients require referral, and identify which conditions are developing, require urgent treatment, or can be routinely followed. Non-ophthalmologist healthcare providers and students alike will find this book, written by leaders in the field, a practical resource to consult as they encounter patients with treatable but potentially sight-threatening conditions.

Download or read book The Vitamin A Story written by R.D. Semba and published by Karger Medical and Scientific Publishers. This book was released on 2013-07-01 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book shows how vitamin A deficiency – before the vitamin was known to scientists – affected millions of people throughout history. It is a story of sailors and soldiers, penniless mothers, orphaned infants, and young children left susceptible to blindness and fatal infections. We also glimpse the fortunate ones who, with ample vitamin A-rich food, escaped this elusive stalker. Why were people going blind and dying? To unravel this puzzle, scientists around the world competed over the course of a century. Their persistent efforts led to the identification of vitamin A and its essential role in health. As a primary focus of today’s international public health efforts, vitamin A has saved hundreds of thousands of lives. But, we discover, they could save many more were it not for obstacles erected by political and ideological zealots who lack a historical perspective of the problem. Although exhaustively researched and documented, this book is written for intellectually curious lay readers as well as for specialists. Public health professionals, nutritionists, and historians of science and medicine have much to learn from this book about the cultural and scientific origins of their disciplines. Likewise, readers interested in military and cultural history will learn about the interaction of health, society, science, and politics. The author’s presentation of vitamin A deficiency is likely to become a classic case study of health disparities in the past as well as the present.

Download or read book Elements of Surgery written by John Syng Dorsey and published by . This book was released on 1818 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neuro Ophthalmology written by Andrew G. Lee and published by Springer. This book was released on 2019-01-01 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers an overview on the most recent advances in global neuro-opthalmic care. Global variation in the incidence and prevalence of specific neuro-ophthalmic conditions results in geographic differences in differential diagnosis, evaluation, management, and treatment of specific disorders. It covers a variety of disorders from optic neuritis, idiopathic intracranial hypertension to traumatic optic neuropathy. To understand the key differences in neuro-ophthalmic health care, this book has gathered recognized experts from around the world to describe and define these regional and geographic variations of care. By highlighting various international approaches to diagnosing and treating neuro-ophthalmic disorders, this book will be an essential guide for neuro-ophthalmologists, ophthalmologists, and neurologists seeking to build upon their clinical skills in a global context.

Download or read book The Hereditary Dystrophies of the Posterior Pole of the Eye written by August F. Deutman and published by . This book was released on 1971 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Artificial Intelligence in Ophthalmology written by Andrzej Grzybowski and published by Springer Nature. This book was released on 2021-10-13 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a wide-ranging overview of artificial intelligence (AI), machine learning (ML) and deep learning (DL) algorithms in ophthalmology. Expertly written chapters examine AI in age-related macular degeneration, glaucoma, retinopathy of prematurity and diabetic retinopathy screening. AI perspectives, systems and limitations are all carefully assessed throughout the book as well as the technical aspects of DL systems for retinal diseases including the application of Google DeepMind, the Singapore algorithm, and the Johns Hopkins algorithm. Artificial Intelligence in Ophthalmology meets the need for a resource that reviews the benefits and pitfalls of AI, ML and DL in ophthalmology. Ophthalmologists, optometrists, eye-care workers, neurologists, cardiologists, internal medicine specialists, AI engineers and IT specialists with an interest in how AI can help with early diagnosis and monitoring treatment in ophthalmic patients will find this book to be an indispensable guide to an evolving area of healthcare technology.

Download or read book New Developments in Ophthalmology Nijmegen 16 18 October 1975 written by A.F. Deutman and published by Springer. This book was released on 1976-06-30 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Symposium held at Nijmegen, The Netherlands, October 16-18, 1975

Download or read book Encyclopedia of Biology written by Don Rittner and published by Infobase Publishing. This book was released on 2004-08 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains approximately 800 alphabetical entries, prose essays on important topics, line illustrations, and black-and-white photographs.

Download or read book Basic and Clinical Applications of Vision Science written by V. Lakshminarayanan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Basic and Clinical Applications of Vision Sciences contains the edited papers presented at the Enoch Vision Science Symposium, April 27-30 1996, which was organized in honor of the pioneer in vision science, Dr Jay M Enoch. Dr Enoch served for twelve years as Dean, School of Optometry, University of California, Berkeley. The book is organized along the lines of Dr. Enoch's contributions to vision science, but is not limited to these topics. Of special note, the reader will find papers on important new developments in photoreceptor, ophthalmic and visual optics, retinal imaging, ophthalmic physiology and pathophysiology, visual psychophysics and visual techniques. The papers are grouped into the following sections: photoreceptor optics; ophthalmic and visual optics; binocular vision, developmental vision, eye movements and physiology; ophthalmic dysfunction; visual psychophysics and clinical applications; history of vision science. £/LIST£

Download or read book Updates on Myopia written by Tien Y Wong and published by . This book was released on 2020-10-08 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY 4.0 license. This open access book discusses basic clinical concepts of myopia, prevention of progression and surgical treatments for myopia and pathological myopia. It also summarises the latest evidence and best practices for managing myopia, high myopia and its complications. Written by leading experts, the book addresses clinical diagnosis and interpretation of imaging modalities, and various complications of myopia such as glaucoma, choroidal neovascularization, retinal degeneration and cataracts. It is a valuable comprehensive resource for general and sub-specialist ophthalmologists as well as residents and ophthalmologists in training.; This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.

Download or read book Trachoma written by Hugh R. Taylor and published by Haddington Press. This book was released on 2008-01-01 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents a fascinating and comprehensive review of trachoma, from ancient times through to the present. He makes his own predictions and recommendations regarding methods for eliminating this scourge for all time. Trachoma, which has been targeted by the World Health Organization (WHO) for elimination by 2020, currently affects 84 million children in 56 countries and blinds 1.5 million adults. This seminal and highly readable work will be invaluable for anyone who is interested in trachoma, but will also appeal to those interested in the interface of public health and development, the history of medicine or health care development.

Download or read book Clinical Manual of Contact Lenses written by Edward S. Bennett and published by Lippincott Williams & Wilkins. This book was released on 2013-08-20 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed to be used as a quick reference, this fourth edition of the Clinical Manual of Contact Lenses allows readers to easily find the topic and information they need without having to search through an entire chapter to find it. Rigid gas permeable lens design and fitting, soft lens problem-solving, astigmatic management, and bifocal correction are just a few of the subjects covered in this manual. Each chapter includes sample cases to reinforce and demonstrate the practical nature of the topic, with nomograms and proficiency checklists summarizing and emphasizing the important points. With this guide, students and practitioners will have a dependable resource to help fit, evaluate, and troubleshoot any contact lenses, especially specialty designs for years to come.

Download or read book Essential Neurosurgery written by Andrew H. Kaye and published by John Wiley & Sons. This book was released on 2009-02-12 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Essential Neurosurgery provides a comprehensive introductionto neurosurgery for junior surgical trainees and medical students.The book concentrates on the principles of neurosurgical diagnosisand management of the more common central nervous system problems,including an understanding of neurology and the pathological basisof neurological disease. There is also coverage of neurosurgicaltechniques and postoperative patient management. This new edition brings the text fully up to date and includesmany of the biological and technological advances made in the fieldof neurosurgery that have improved surgical possibilities andpatient outcomes. Review quotations from the previous edition ‘flowing and well highlighted text keeps the readerinterested in the subject’ British Journal of Neurosurgery ‘an excellent text…well organised and clearly setout’ Journal of Neurology, Neurosurgery and Psychiatry

Download or read book Evidence based Physical Diagnosis written by Steven R. McGee and published by Saunders. This book was released on 2007 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clinical reference that takes an evidence-based approach to the physical examination. Updated to reflect the latest advances in the science of physical examination, and expanded to include many new topics.

Download or read book Primary Retinal Detachment written by Ingrid Kreissig and published by Springer Science & Business Media. This book was released on 2005-12-06 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: -Compares the 4 main techniques for repair of primary retinal detachment -Written by leading experts in the field -A "hands-on" guide for the retina and vitreous surgeon -Contains instructive, color computer drawings and tables

Download or read book Uveitis written by Robert B. Nussenblatt and published by . This book was released on 1996 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition expands on the diagnostic and therapeutic approaches to uveitis. New fluorescein angiograms and indocyanine angiograms are presented, and descriptive case studies provide examples relevant to the treatment of patients with uveitis. Now with 79 color photographs, the book is even more thorough in its coverage of the medical, pharmacological, and surgical treatment of uveitis. You will also find the most up-to-date information on other conditions associated with uveitis, including inflammatory complications of AIDS. A Brandon Hill Title