Download or read book The Effects of Light Colour and Print Size on Reading Speed in the Visually Impaired written by Elliott Morrice and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reading is an essential component of daily life and it can be one of the most difficult tasks faced by individuals with low vision. A variety of factors, e.g., magnification, print-size, lighting, and colour, have been shown to improve reading speeds in the visually impaired, but there is no gold standard measure that can be used to assess optimal colour and illumination to facilitate reading. Increased print-size and luminance have consistently been shown to improve reading speed, and improved lighting has also been shown to improve the overall quality of life of the visually impaired. Conversely, colour manipulation, e.g., different coloured lighting, lens filters, plastic overlays, are controversial in their utility as there is contradictory evidence for their efficacy at improving reading speed. Additionally, there is a lack of research in the field examining at how both lighting and colour can be manipulated simultaneously, at various print-sizes, to examine their impact on reading speed in both the visually and non-visually impaired. Consequently, improved luminance and increased print-size are standard practices in low vision rehabilitation (LVR), however, the use of colour in LVR is likely to be more nuanced, individualistic, and/or not adequately assessed. Unfortunately, in the field of LVR there is no accepted and validated gold standard measure that can be used to determine optimal colour and illumination to facilitate reading at various print-sizes. Therefore, the purpose of this dissertation is to examine the effects of colour, illumination, and print-size on reading, and to compare/contrast the efficacy of novel assistive technology devices that may be used in the context of LVR to determine optimal colour and illumination to facilitate reading.
Download or read book Psychophysics of Reading in Normal and Low Vision written by Gordon E. Legge and published by CRC Press. This book was released on 2006-10-11 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a leader in the field, this book discusses the role of vision in reading. The author describes the influence of physical properties of text on reading performance and the implications for information processing in the visual pathways. He explores different forms of low vision that affect reading, text characteristics that optimize reading for those with low vision, principles underlying the legibility of text, and guidelines for displaying text. Special topics include the role of the magnocellular pathway in reading and dyslexia, Braille reading, and fonts for highway signs. An accompanying CD contains reprints of the seminal series of articles by Gordon E. Legge and colleagues published between 1985 and 2001.
Download or read book Visual Impairments written by National Research Council and published by National Academies Press. This book was released on 2002-08-17 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Issues in Ophthalmology and Optometry Research and Practice 2013 Edition written by and published by ScholarlyEditions. This book was released on 2013-05-01 with total page 1167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Ophthalmology and Optometry Research and Practice: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Orthoptics. The editors have built Issues in Ophthalmology and Optometry Research and Practice: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Orthoptics in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Ophthalmology and Optometry Research and Practice: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Download or read book The Effects of Self selected Level of Illumination on Reading Speed and Comprehension of Visually Impaired and Normally Sighted Children written by Lester Harry Lehon and published by . This book was released on 1974 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Blind Vision written by Zaira Cattaneo and published by MIT Press. This book was released on 2023-12-05 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation of the effects of blindness and other types of visual deficit on cognitive abilities. Can a blind person see? The very idea seems paradoxical. And yet, if we conceive of "seeing" as the ability to generate internal mental representations that may contain visual details, the idea of blind vision becomes a concept subject to investigation. In this book, Zaira Cattaneo and Tomaso Vecchi examine the effects of blindness and other types of visual deficit on the development and functioning of the human cognitive system. Drawing on behavioral and neurophysiological data, Cattaneo and Vecchi analyze research on mental imagery, spatial cognition, and compensatory mechanisms at the sensorial, cognitive, and cortical levels in individuals with complete or profound visual impairment. They find that our brain does not need our eyes to "see." Cattaneo and Vecchi address critical questions of broad importance: the relationship of visual perception to imagery and working memory and the extent to which mental imagery depends on normal vision; the functional and neural relationships between vision and the other senses; the specific aspects of the visual experience that are crucial to cognitive development or specific cognitive mechanisms; and the extraordinary plasticity of the brain—as illustrated by the way that, in the blind, the visual cortex may be reorganized to support other perceptual or cognitive funtions. In the absence of vision, the other senses work as functional substitutes and are often improved. With Blind Vision, Cattaneo and Vecchi take on the "tyranny of the visual," pointing to the importance of the other senses in cognition.
Download or read book Encyclopedia of Perception written by E. Bruce Goldstein and published by SAGE. This book was released on 2010 with total page 1281 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of the ease with which we perceive, many people see perception as something that "just happens." However, even seemingly simple perceptual experiences involve complex underlying mechanisms, which are often hidden from our conscious experience. These mechanisms are being investigated by researchers and theorists in fields such as psychology, cognitive science, neuroscience, computer science, and philosophy. A few examples of the questions posed by these investigations are, What do infants perceive? How does perception develop? What do perceptual disorders reveal about normal functioning? How can information from one sense, such as hearing, be affected by information from another sense, such as vision? How is the information from all of our senses combined to result in our perception of a coherent environment? What are some practical outcomes of basic research in perception? These are just a few of the questions this encyclopedia will consider, as it presents a comprehensive overview of the field of perception for students, researchers, and professionals in psychology, the cognitive sciences, neuroscience, and related medical disciplines such as neurology and ophthalmology.
Download or read book Making Eye Health a Population Health Imperative written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2017-01-15 with total page 587 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability to see deeply affects how human beings perceive and interpret the world around them. For most people, eyesight is part of everyday communication, social activities, educational and professional pursuits, the care of others, and the maintenance of personal health, independence, and mobility. Functioning eyes and vision system can reduce an adult's risk of chronic health conditions, death, falls and injuries, social isolation, depression, and other psychological problems. In children, properly maintained eye and vision health contributes to a child's social development, academic achievement, and better health across the lifespan. The public generally recognizes its reliance on sight and fears its loss, but emphasis on eye and vision health, in general, has not been integrated into daily life to the same extent as other health promotion activities, such as teeth brushing; hand washing; physical and mental exercise; and various injury prevention behaviors. A larger population health approach is needed to engage a wide range of stakeholders in coordinated efforts that can sustain the scope of behavior change. The shaping of socioeconomic environments can eventually lead to new social norms that promote eye and vision health. Making Eye Health a Population Health Imperative: Vision for Tomorrow proposes a new population-centered framework to guide action and coordination among various, and sometimes competing, stakeholders in pursuit of improved eye and vision health and health equity in the United States. Building on the momentum of previous public health efforts, this report also introduces a model for action that highlights different levels of prevention activities across a range of stakeholders and provides specific examples of how population health strategies can be translated into cohesive areas for action at federal, state, and local levels.
Download or read book 77 Shadow Street with bonus novella The Moonlit Mind written by Dean Koontz and published by Bantam. This book was released on 2012-08-28 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt: #1 NEW YORK TIMES BESTSELLER Welcome to the Pendleton. Built as a tycoon’s dream home in the 1880s and converted to luxury condominiums not quite a century later, the Gilded Age palace at the summit of Shadow Hill is a sanctuary for its fortunate residents. Scant traces remain of the episodes of madness, suicide, mass murder—and whispers of things far worse—that have scarred its grandeur almost from the beginning. But now inexplicable shadows caper across walls, security cameras relay impossible images, phantom voices mutter in strange tongues, not-quite-human figures lurk in the basement, elevators plunge into unknown depths. With each passing hour a terrifying certainty grows: Whatever drove the Pendleton’s past occupants to their unspeakable fates is at work again. And as nightmare visions become real, as a deadly tide begins to engulf them, the people at 77 Shadow Street will find the key to humanity’s future . . . if they can survive to use it. Includes the bonus novella The Moonlit Mind—first time in print
Download or read book Low Vision Manual written by A. Jonathan Jackson and published by Elsevier Health Sciences. This book was released on 2007-01-01 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: .this book represents a real milestone for low vision care because it is one of the first low vision books in the world, and the first from the UK, that doesn't just give lip service to multi-disciplinary collaboration- it has a multi-disciplinary authorship. Barbara Ryan, Research Associate, School of Optometry and Vision Sciences, Cardiff University, Cardiff, UK Low Vision Manual is a comprehensive guide and up-to-date reference source, written by clinical and research experts in the fields of disease detection and management; primary and secondary optometric care; low vision optics and prescribing; counselling and rehabilitation. All these areas are explored in this book in four key sections: Section One: Definition of low vision and its epidemiology Section Two: The measurement of visual function of the visually impaired Section Three: The optics and practical tips on prescribing low vision aids Section Four: Rehabilitation strategies and techniques This is an important reference tool for all professionals involved with the visually impaired. The book covers everything a practitioner will need on a day-to-day basis. Clear layout with practical tips, worked examples and practical pearls will enable the front-line eye-care professional to provide patients with sound, research-based clinical care and rehabilitation. An essential reference for: . Ophthalmology . Optometry . Orthoptics . Ophthalmic nursing . Visual rehabilitation . Occupational therapy . Social work . Peer work . Psychology . Dispensing opticians
Download or read book Communication and Sensory Loss written by Kathryn Crowe and published by Taylor & Francis. This book was released on 2024-08-14 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection explores communication differences in individuals with sensory impairment/loss relevant to health and education students and professionals. Children and adults with hearing, vision, and dual sensory impairment/ loss may experience differences and/or difficulties with communication. This book goes beyond describing sensory loss to encourage readers to think about sensory loss and communication as part of a biopsychosocial view of health and the intersecting identities of the clients and families that they service. The book takes a strengths-based, evidence-informed approach and utilises the International Classification of Functioning, Disability and Health (ICF) of the World Health Organization (WHO). Each chapter focuses on either children or adults with hearing, vision, dual sensory impairment/loss, or sensory loss and complex communication needs. Each chapter introduces the group described in the chapter and issues around appropriate use of terminology, followed by a discussion of the sensory impairment/loss and communication needs considered within each component of the ICF. Chapters conclude with case studies highlighting cultural and linguistic diversity, high-resourced and low- resourced contexts, and intersecting identities in which the framework of the ICF is applied. This book is a valuable resource for scholars, educators, and clinicians interested in evidence-based practices to support their work with individuals experiencing sensory loss.
Download or read book Visual Impairment and Computer Displays written by Michael John Simmers and published by . This book was released on 1988 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Functional Vision written by Amanda Hall Lueck and published by American Foundation for the Blind. This book was released on 2004 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emphasizing the need for collaboration and cooperation across medical, education, rehabilitation, and social service disciplines, this volume provides a primary reference tool for those engaged in work related to low vision rehabilitation and service delivery. It provides information about the funct.
Download or read book A Comparison of the Effectiveness of Standard Print and Large Print in Facilitating the Reading Skills of Visually Impaired Students written by Kim Crispin Sykes and published by . This book was released on 1971 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reading Performance of Visually Impaired Print Readers Using Standard Print Large Print and Magnification written by John Bock and published by . This book was released on 1971 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Lighthouse Handbook on Vision Impairment and Vision Rehabilitation written by Barbara Silverstone and published by Oxford University Press. This book was released on 2000-04-13 with total page 1414 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive reference source is a state-of-the-art guide to the scientific, clinical, rehabilitative, and policy aspects of vision impairment and blindness. More than 100 original contributions from physicians, therapists, rehabilitation specialists, and policy makers cover everything from the basic science of vision and its diseases to assistive technologies, treatment, and care.
Download or read book Psychophysics of Reading in Normal and Low Vision written by Gordon E. Legge and published by CRC Press. This book was released on 2006-10-11 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a leader in the field of low vision research, this book discusses the role of vision in reading, focusing on the reading performance of people with normal, healthy vision and people with impaired vision. The author describes the influence of physical properties of text on reading performance and the implications for information processing in the visual pathways. Providing an overview of seminal research, this book explores: different forms of low vision that affect reading, text characteristics that optimize reading for those with low vision, and principles underlying the legibility of text and guidelines for displaying text. Special topics include the role of the magnocellular pathway in reading and dyslexia, Braille reading, and fonts for highway signs. An accompanying CD contains reprints of the seminal series of articles by Gordon E. Legge and colleagues on the psychophysics of reading in normal and low vision, published between 1985 and 2001. This volume will be of interest to researchers and professionals in the area of low vision, including graphics engineers, HCI scientists, human factors specialists, low-vision rehabilitation specialists, opthamologists, occupational therapists, special education teachers, as well as cognitive scientists and perceptual psychologists. It is also suitable for advanced students with a background in the topic.
