The Contrast Sensitivity Function: From Laboratory to Clinic PDF Download
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Author: Fang Hou
Publisher: Frontiers Media SA
ISBN: 2889718832
Category : Science
Languages : en
Pages : 157
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Book Description
Author: Fang Hou
Publisher: Frontiers Media SA
ISBN: 2889718832
Category : Science
Languages : en
Pages : 157
Get Book Here
Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309083486
Category : Social Science
Languages : en
Pages : 369
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Book Description
When children and adults apply for disability benefits and claim that a visual impairment has limited their ability to function, the U.S. Social Security Administration (SSA) is required to determine their eligibility. To ensure that these determinations are made fairly and consistently, SSA has developed criteria for eligibility and a process for assessing each claimant against the criteria. Visual Impairments: Determining Eligibility for Social Security Benefits examines SSA's methods of determining disability for people with visual impairments, recommends changes that could be made now to improve the process and the outcomes, and identifies research needed to develop improved methods for the future. The report assesses tests of visual function, including visual acuity and visual fields whether visual impairments could be measured directly through visual task performance or other means of assessing disability. These other means include job analysis databases, which include information on the importance of vision to job tasks or skills, and measures of health-related quality of life, which take a person-centered approach to assessing visual function testing of infants and children, which differs in important ways from standard adult tests.
Author: David B. Elliott
Publisher: Elsevier Health Sciences
ISBN: 0702077909
Category : Medical
Languages : en
Pages : 341
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Book Description
Well organized and easy to read, Clinical Procedures in Primary Eye Care, 5th Edition, takes an accessible, step-by-step approach to describing the commonly used primary care procedures that facilitate accurate diagnosis and effective patient management. This practical, clinically-focused text offers succinct descriptions of today's most frequently encountered optometric techniques supported by research-based evidence. You'll find essential instructions for mastering the procedures you need to know, including recent technical advances in the field. - Discusses technical advances that are dramatically altering optometry: Optical Coherence Tomography (OCT) and ultra-wide field imaging (optomaps). - Presents outstanding new digital images of OCT cases and optomaps for a wide variety of conditions of the central and peripheral retina. - Focuses on evidence-based optometry; all procedures include a section that reviews when and how the procedure should be measured and uses clinical wisdom in addition to research-based evidence. - Presents new digital images of normal variations of the eye – crucial visual support for understanding what is normal and what is disease. - Helps you clearly visualize procedures and eye disorders through full-color photographs, diagrams, and video clips. - Provides fully revised print on dry eye assessment based on the latest international Dry Eye Workshop (DEWS) guidelines. - Features coverage of changes in the eye due to high myopia, and expounds the need for myopia control techniques. - Offers extensive material online to enhance learning: video clips, interactive testing sections, additional photographs, and more. - Expert ConsultTM eBook version included with purchase. This enhanced eBook experience allows you to search all of the text, figures, and references from the book on a variety of devices.
Author: Charles S. Lieber
Publisher: Springer Science & Business Media
ISBN: 1461533201
Category : Psychology
Languages : en
Pages : 583
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Book Description
In the Western world, alcohol is the most abused drug. recognized that a majority of patients with cirrhosis do For all the attention being directed toward heroin, co admit to excessive alcohol consumption. Other tissues caine, and marijuana, the favorite mood-altering drug in can also be severely affected, including brain, gut, the United States, as in almost every human society, is heart, endocrine systems, bone, blood, and muscle. A question often raised is, "In what way does an alcoholic alcohol. In nature, the fermentation of sugars is the differ from a nonalcoholic?" Inquiries have focused on major source of ethanol, but how humans first encoun tered it is unclear. It most likely occurred in either psychological make-up, behavioral differences, and socio fermented fruit juices (wine), fermented grain (beer), or economic factors. More recently, however, physical dif fermented honey (mead). Whether the Paleolithic Stone ferences have been delineated. Prior to the development Age man knew of ethanol is undetermined, but it is of various disease entities, chronic ethanol exposure abundantly clear that his Neolithic descendants were results in profound biochemical and morphological familiar with the product of fermentation. With the changes. Consequently, an alcoholic does not respond exception of the original inhabitants of Tierra del Fuego, normally to alcohol, other drugs, or even other toxic the Australian aborigines, and some polar tribes, all agents.
Author: National Eye Institute
Publisher:
ISBN:
Category : Ophthalmology
Languages : en
Pages : 470
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Book Description
Author: University of California, Berkeley
Publisher:
ISBN:
Category :
Languages : en
Pages : 460
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Book Description
Includes general and summer catalogs issued between 1878/1879 and 1995/1997.
Author: Amit Ghosh, MD
Publisher: Oxford University Press, USA
ISBN: 0199755698
Category : Medical
Languages : en
Pages : 1016
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Book Description
Written by experienced faculty at Mayo Clinic, The NINTH EDITION is a completely revised and updated study guide that has proved invaluable for the American Board of Internal Medicine certification or maintenance of certification examination as well as for general practice review by physicians around the world.
Author: S. Robert Hilfer
Publisher: Springer Science & Business Media
ISBN: 1461249147
Category : Science
Languages : en
Pages : 255
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Book Description
The eye has fascinated scientists from the earliest days of biological in vestigation. The diversity of its parts and the precision of their interaction make it a favorite model system for a variety of developmental studies. The eye is a particularly valuable experimental system not only because its tissues provide examples of fundamental processes, but also because it is a prominent and easily accessible structure at very early embryonic ages. In order to provide an open forum for investigators working on all aspects of ocular development, a series of symposia on ocular and visual devel opment was initiated in 1973. A major objective of the symposia has been to foster communication between the basic research worker and the clinical community. It is our feeling that much can be learned on both sides from this interaction. The idea for an informal meeting allowing maximum ex change of ideas originated with Dr. Leon Candeub, who supplied the nec essary driving force that made the series a reality. Each symposium has concentrated on a different aspect of ocular development. Speakers have been selected to approach related topics from different perspectives.
Author: Pablo Artal
Publisher: CRC Press
ISBN: 131535571X
Category : Medical
Languages : en
Pages : 1015
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Book Description
Handbook of Visual Optics offers an authoritative overview of encyclopedic knowledge in the field of physiological optics. It builds from fundamental concepts to the science and technology of instruments and practical procedures of vision correction, integrating expert knowledge from physics, medicine, biology, psychology, and engineering. The chapters comprehensively cover all aspects of modern study and practice, from optical principles and optics of the eye and retina to novel ophthalmic tools for imaging and visual testing, devices and techniques for visual correction, and the relationship between ocular optics and visual perception.
Author: National Research Council
Publisher: National Academies Press
ISBN:
Category : Medical
Languages : en
Pages : 75
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Book Description
Recent vision research has led to the emergence of new techniques that offer exciting potential for a more complete assessment of vision in clinical, industrial, and military settings. Emergent Techniques for Assessment of Visual Performance examines four areas of vision testing that offer potential for improved assessment of visual capability including: contrast sensitivity function, dark-focus of accommodation, dynamic visual acuity and dynamic depth tracking, and ambient and focal vision. In contrast to studies of accepted practices, this report focuses on emerging techniques that could help determine whether people have the vision necessary to do their jobs. In addition to examining some of these emerging techniques, the report identifies their usefulness in predicting performance on other visual and visual-motor tasks, and makes recommendations for future research. Emergent Techniques for Assessment of Visual Performance provides summary recommendations for research that will have significant value and policy implications for the next 5 to 10 years. The content and conclusions of this report can serve as a useful resource for those responsible for screening industrial and military visual function.
