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 Optical Coherence Tomography in Age Related Macular Degeneration written by Gabriel Coscas and published by Springer Science & Business Media. This book was released on 2009-07-25 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid or even dramatic progress has been made in the field of AMD over recent years, leading to a constant revision of basic concepts. A wide range of fundus imaging modalities are now available, and this book explains the respective value of each technique. The information provided by OCT is presented logically by comparison with plain films, autofluorescence, fluorescein angiography, or indocyanine green angiography. Meticulous biomicroscopic examination of macular changes and the essential value of fluorescein angiography for the detection of anatomical alterations of the macula and for precise evaluation of lesions and their course by indocyanine green angiography have naturally led the author Gabriel Coscas to analyze the new data provided by OCT.

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 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 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 Sociomedical Perspectives on Patient Care written by Jeffrey M. Clair and published by University Press of Kentucky. This book was released on 1993-08-10 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Social change has placed new demands on the practice of medicine, altering almost every aspect of patient care relationships. Just as medicine was encouraged to embrace the biological sciences some 100 years ago, recent directives indicate the importance of the social sciences in understanding biomedical practice. Humanistic challenges call for changes in curative and technological imperatives. In this book, social scientists contribute to such challenges by using social evidence to indicate appropriate new goals for health care in a changing environment. This book was designed to stimulate and challenge all those concerned with the human interactions that constitute medical practice. To encompass a wide range of topics, the authors include researchers; practicing physicians from the specialties of family, general, geriatric, pediatric, and oncological medicine; social and behavioral scientists; and public health representatives. Cutting across disciplinary boundaries, they explore the ethical, economic, and social aspects of patient care. These essays draw on past studies of the patient-doctor relationship and generate new and important questions. They address social behavior in patient care as a way to approach theoretical issues pertinent to the social and medical sciences. The authors also use social variables to study patient care and suggest new areas of sociomedical inquiry and new approaches to medical practice, education, and research. Its cross-disciplinary approach and jargon-free writing make this book an important and accessible tool for physician, scholar, and student.

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 Evidence Based Geriatric Nursing Protocols for Best Practice written by Marie Boltz, PhD, RN, GNP-BC, FGSA, FAAN and published by Springer Publishing Company. This book was released on 2016-03-28 with total page 751 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of one of the premier references for geriatric nurses in hospital, long-term, and community settings delivers current guidelines, real-life case studies, and evidence-based protocols developed by master educators and practitioners. With a focus on improving quality of care, cost-effectiveness, and outcome, the fifth edition is updated to provide the most current information about care of common clinical conditions and issues in older patients. Several new expert contributors present current guidelines about hip fractures, frailty, perioperative and postoperative care, palliative care, and senior-friendly emergency departments. Additionally, chapters have been reorganized to enhance logical flow of content and easy information retrieval. Protocols, systematically tested by more than 300 participating NICHE (Nurses Improving Care for Health system Elders) hospitals‚ are organized in a consistent format and include an overview, evidence-based assessment and intervention strategies, and an illustrative case study with discussion. Additionally, protocols are embedded within chapter text, providing the context and detailed evidence for each. Chapter objectives, annotated references,and evidence ratings for each protocol are provided along with resources for additional study. New to the Fifth Edition: Reorganized to enhance logical flow of information and ease of use Updated and revised Includes new contributions from expert educators and practitioners Provides new chapters on perioperative and postoperative care, general surgical care, care of hip fracture, palliative care, and the senior-friendly emergency department Key Features: Includes PowerPoints and a test bank for instructors Delivers evidence-based, current guidelines and protocols for care of common clinical conditions in the older person Illustrates the application of clinical protocols to real-life practice through case studies and discussion Edited by nationally known geriatric leaders who are endorsed by the Hartford Institute for Geriatric Nursing and NICHE Written for nursing students, nurse leaders, and practitioners at all levels, including those in specialty roles

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 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 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 Queen Square A History of the National Hospital and its Institute of Neurology written by Simon Shorvon and published by Cambridge University Press. This book was released on 2019 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive history of the National Hospital, Queen Square, and its Institute, placed within the context of British neurology.

Download or read book Current Advances in Ophthalmic Technology written by Parul Ichhpujani and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of the latest technological advances in various ophthalmology subspecialties: from the latest glaucoma shunt devices to mobile adaptors for posterior segment evaluation, this book has it all. It gives readers a valuable head start for adopting the uber-new and cutting-edge products now available on the market. Being familiar with these new products and technologies will help both new and established ophthalmologists make effective and efficient choices, while also helping their practices stand out from the crowd. Perhaps no other branch of medicine is as technology-oriented as ophthalmology: be it lasers, fiber optics, robotics, stem cells or nanoparticles, every cutting-edge step that "Research and Development" takes is rapidly integrated into everyday eye practice. As part of the series "Current Practices in Ophthalmology", this volume is intended for residents, fellows-in-training, generalist ophthalmologists, specialists and vision science researchers alike.

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.

Download or read book Alexia written by Alexander Leff and published by Springer Science & Business Media. This book was released on 2013-10-17 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive review of the main acquired disorders of reading: hemianopic, pure and central alexia. The authors review the diagnostic criteria for each of the different types of disorder, and the efficacy of the therapeutic studies that have attempted to remediate them. The different theoretical models of adult reading, which largely rest on how the reading system responds to injury, are also discussed and evaluated. Focal brain injury caused by stroke and brain tumors are discussed in depth as are the effects of dementia on reading. This book starts with a chapter on normal reading, followed by chapters on hemianopic alexia, pure alexia and central alexia, each structured in the same way, with: a description of the condition; a historical review of cases to date; psychophysics; consideration of the causative lesions; evidence from functional imaging studies on patients and, most importantly, a review of the evidence base for treating each condition. Finally, there is a chapter on how patient data has informed how we think about reading. Alexia: Diagnosis, Treatment and Theory is aimed at neuropsychologists (both experimental and clinical), neurologists, speech therapists and others who deal with patients whose reading has been affected by an acquired brain injury, as well as interested students studying language disorders.

Download or read book Introduction to Biophotonics written by Paras N. Prasad and published by John Wiley & Sons. This book was released on 2004-01-16 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paras Prasad’s text provides a basic knowledge of a broad range of topics so that individuals in all disciplines can rapidly acquire the minimal necessary background for research and development in biophotonics. Introduction to Biophotonics serves as both a textbook for education and training as well as a reference book that aids research and development of those areas integrating light, photonics, and biological systems. Each chapter contains a topic introduction, a review of key data, and description of future directions for technical innovation. Introduction to Biophotonics covers the basic principles of Optics Optical spectroscopy Microscopy Each section also includes illustrated examples and review questions to test and advance the reader’s knowledge. Sections on biosensors and chemosensors, important tools for combating biological and chemical terrorism, will be of particular interest to professionals in toxicology and other environmental disciplines. Introduction to Biophotonics proves a valuable reference for graduate students and researchers in engineering, chemistry, and the life sciences.