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 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 Pediatric Neuro Ophthalmology written by Michael C. Brodsky and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pediatric Neuroophthalmology details the diagnostic criteria, current concepts of pathogenesis, neuroradiological correlates, and clinical management of a large group of neuroophthalmic disorders that present in childhood. Surprisingly distinct from neuroophthalmic disorders afflicting adults, this set of diseases falls between the cracks of most ophthalmology training, and thus, warrants a practical, clinical guide for the practitioner in ophthalmology - the neuroophthalmologist, pediatric ophthalmologist, general ophthalmologist - as well as neurologists and for residents. The authors, leading pediatric ophthalmologists, have taken this difficult subject matter and developed an accessible, user-friendly manual with a detailed approach to the recognition, differential diagnosis, and management of pediatric neuroophthalmologic disorders.

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 Pediatric Retina written by James D. Reynolds and published by Springer Science & Business Media. This book was released on 2010-09-14 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pediatric retinal diseases are not simply retinal diseases that occur in children; rather, they are unique disorders that often are not found in adults. This textbook of the pediatric retina offers in-depth guidance on congenital and acquired diseases of the retina in the pediatric population. It is organized according to disease onset and timing, as well as anatomy. All chapters are written by leading authorities in the field from both the pediatric and the retinal perspective. A multidisciplinary approach to the topic is adopted, and critical information is included on disease classification and diagnosis, pathophysiology, genetics, complications, and prognosis. Pediatric Retina will be a useful source of information for pediatric ophthalmologists, retina specialists, and other eye care providers who care for children.

Download or read book Geriatric Emergency Medicine written by Joseph H. Kahn and published by Cambridge University Press. This book was released on 2014-01-16 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive volume provides a practical framework for evaluation, management and disposition of this growing vulnerable patient population.

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 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 Stroke Syndromes 3ed written by Louis R. Caplan and published by Cambridge University Press. This book was released on 2012-07-12 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive survey of dysfunction due to stroke, this revised edition remains the definitive guide to stroke patterns and syndromes.

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 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 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 Textbook of Paediatric Emergency Medicine E Book written by George Jelinek and published by Elsevier Health Sciences. This book was released on 2011-12-02 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive textbook of paediatric emergency medicine for trainee doctors - covers all the problems likely to present to a trainee in the emergency department. Short concise chapters, with key point boxes at the beginning - easy to use for the hard-pressed trainee. Aims to give a consensus approach to assessment and treatment, based on the latest evidence. Highlights areas of controversy.

Download or read book The Eye in Pediatric Systemic Disease written by Alex V. Levin and published by Springer. This book was released on 2017-06-20 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt: ​​This book is the first of its kind to describe ocular manifestations of systemic diseases in the pediatric population. Written and edited by experts in areas of pediatric ophthalmology and genetics, this new text covers a multitude of topics in a comprehensive and cataloged fashion. The Eye in Pediatric Systemic Disease is designed as an in-depth and up-to-date reference work that is heavily referenced, thus allowing the reader ready access to the international supporting literature. Everything from ocular manifestations of hematologic disease, child abuse, psychiatric diseases, renal disorders, and vitamin disorders are covered, allowing readers to know what to look for in the eyes of children with a given systemic disorder. The Eye in Pediatric Systemic Disease is written in language that is accessible to ophthalmologists and pediatricians, as well as allied health care professionals.

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 The Ophthalmic Assistant E Book written by Harold A. Stein and published by Elsevier Health Sciences. This book was released on 2017-01-31 with total page 929 pages. Available in PDF, EPUB and Kindle. Book excerpt: Freeman, is your go-to resource for practical, up-to-date guidance on ocular diseases, surgical procedures, medications, and equipment, as well as paramedical procedures and office management in the ophthalmology, optometry, opticianry or eye care settings. Thoroughly updated content and more than 1,000 full-color illustrations cover all the knowledge and skills you need for your day-to-day duties as well as success on certification and recertification exams. This comprehensive text provides essential learning and practical guidance for ophthalmic assistants, technicians, medical technologists, physician assistants, and all others involved in ocular care, helping each become a valuable asset to the eye care team. Full-color visual guidance for identification of ophthalmic disorders, explanations of difficult concepts, and depictions of the newest equipment used in ophthalmology and optometry. Quick-reference appendices provide hospital/practice forms for more efficient patient record keeping, conversion tables, and numerous language translations, plus information on ocular emergencies, pharmaceuticals, and more. Updated throughout with the latest information on basic science, new testing procedures, new equipment, the role of the assistant in the practice, and an expanded chapter on OCT imaging. A new bonus color image atlas tests your clinical recognition of disease and disorders of the eye. Four brand-new chapters cover the latest industry advances regarding dry eye, vision function and impairment, uveitis, and surgical correction of presbyopia.

Download or read book The Stereoscope written by David Brewster and published by Franklin Classics. This book was released on 2018-10-09 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.