History of Ophthalmology PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download History of Ophthalmology PDF full book. Access full book title History of Ophthalmology by Harold E. Henkes. Download full books in PDF and EPUB format.
Author: Harold E. Henkes
Publisher: Springer Science & Business Media
ISBN: 9400906412
Category : Medical
Languages : en
Pages : 151
Get Book Here
Book Description
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].
Author: Harold E. Henkes
Publisher: Springer Science & Business Media
ISBN: 9400906412
Category : Medical
Languages : en
Pages : 151
Get Book Here
Book Description
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].
Author: Nagahisa Yoshimura
Publisher: Springer
ISBN: 9783642386244
Category : Medical
Languages : en
Pages : 0
Get Book Here
Book Description
OCT provided a great advantage over other diagnostic modalities, as it could noninvasively provide tomographic images of the retina of a living eye. As a result, a number of new findings in retinal diseases were made using the time-domain OCT. OCT has now become an essential medical equipment OCT has now become an essential medical equipment in ophthalmic care and quality textbooks describing the functionality of OCT are very important in the education of young ophthalmologists and eye care personnel. In this book are chosen high quality OCT images of rather common diseases as well as images of several rare diseases.
Author: Renu Jogi
Publisher: JP Medical Ltd
ISBN: 9352500059
Category : Medical
Languages : en
Pages : 1
Get Book Here
Book Description
The fifth edition of this book has been fully revised to present undergraduate medical students with the latest information in the field of ophthalmology. Beginning with an overview of embryology and anatomy, the next chapters explain the physiology and neurology of vision and examination of the eye. Each of the following sections provides in depth detail on each section of the eye, and the step by step diagnosis and management of associated disorders and diseases. The final chapters discuss general therapeutics, causes and prevention of blindness, and ophthalmic instruments. The comprehensive text is highly illustrated with more than 700 clinical photographs and diagrams. Key Points Fully revised, new edition presenting students with latest information in ophthalmology Covers all sections of the eye and associated disorders and diseases Highly illustrated with more than 700 images and diagrams Previous edition (9788184484519) published in 2008
Author: Andrzej Grzybowski
Publisher: Springer Nature
ISBN: 3030786013
Category : Medical
Languages : en
Pages : 280
Get Book Here
Book Description
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.
Author: Jeffrey M. Clair
Publisher: University Press of Kentucky
ISBN: 9780813108193
Category : Medical
Languages : en
Pages : 308
Get Book Here
Book Description
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.
Author: Louis R. Caplan
Publisher: Cambridge University Press
ISBN: 1107018862
Category : Medical
Languages : en
Pages : 633
Get Book Here
Book Description
A comprehensive survey of dysfunction due to stroke, this revised edition remains the definitive guide to stroke patterns and syndromes.
Author: August F. Deutman
Publisher:
ISBN:
Category : Dystrophy
Languages : en
Pages : 518
Get Book Here
Book Description
Author: R.D. Semba
Publisher: Karger Medical and Scientific Publishers
ISBN: 331802189X
Category : Medical
Languages : en
Pages : 224
Get Book Here
Book Description
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.
Author: Kuldev Singh
Publisher: Thieme
ISBN: 9783131278418
Category : Medical
Languages : en
Pages : 420
Get Book Here
Book Description
A practical, case-based manual for all residents and professionals, this new book covers key topics in cornea and external disease, cataract, glaucoma, retina, uveitis, tumors, neuro-ophthalmology, pediatrics, oculoplastics, and more! You will find 99 concise sample cases that take you step-by-step through the entire process, from history, examination, and differential diagnosis to treatment, surgical techniques, and follow-up. Real-world examples of common clinical conditions abound throughout the book.
Author: Jill E. Winland-Brown
Publisher: F A Davis Company
ISBN: 9780803618190
Category : Medical
Languages : en
Pages : 516
Get Book Here
Book Description
The authors provide some excellent tools for teaching a venipuncture class though small, is complete in its coverage of topics related to phlebotomy. The unit on blood collection and venipuncture equipment is very thorough. . . Respiratory Care, review of the 1st Edition.Perfect for intensive one- or two-day phlebotomy courses! This user-friendly text concentrates on the crucial skills of blood specimen collection. . . making it a cost-effective, compact learning tool for cross training and continuing education.
