[PDF] Vision Facts eBook

Author : Jason Yang
Publisher : Universal-Publishers
Page : 162 pages
File Size : 26,73 MB
Release : 2018-07-16
Category : Medical
ISBN : 1599428083

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Vision Facts is a question and answer guide to the wonders of the human eye, its complex structures and the process of visual perception. It traces the journey of vision from a ray of light entering the eye to the processing done by the brain, to the development and aging of the human visual system and common disorders associated with both processes. Organized in an intuitive question-and-answer format and accompanied by clear diagrams, Vision Facts provides answers regarding your vision in a manner accessible to all who are interested. Each topic includes references to external resources such as lecture notes and research papers for those who wish to delve deeper. It is a perfect handbook for anyone who is interested in visual science, sensory processing, neuroscience, or physiology; and is an excellent reference for anyone considering a career in ophthalmology or optometry. Some examples of the questions include the following. What is the resolution of the eye? Why do astronomers often cover flashlights with a red filter while stargazing? What is color-blindness and how does it occur? What role does vision play in the circadian rhythm? What chemical signals cause the eye to develop into its mature form? How does alcohol during pregnancy affect eye development? How well can a newborn baby see? How does being born prematurely affect vision? What is 20/20 vision? How does aging affect vision? These are all questions that are addressed in Vision Facts, along with countless more.

Author : National Academies of Sciences, Engineering, and Medicine
Publisher : National Academies Press
Page : 587 pages
File Size : 32,90 MB
Release : 2017-01-15
Category : Medical
ISBN : 0309439981

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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.

Author : Gary H. Cassel
Publisher : JHU Press
Page : 536 pages
File Size : 30,64 MB
Release : 2021-04-27
Category : Family & Relationships
ISBN : 1421439972

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"This is the second edition of an encyclopedic reference work of consumer health about the adult human eye. It covers common eye complaints such as dry eye, ocular migraine, device-related eyestrain, and conjunctivitis, along with newer forms of laser eye therapy and lens implants. The second edition features a new chapter on cosmetics and the eye, along with updated content about diagnostic testing, new forms of eyeglass materials, colored contacts, and therapies for medical conditions for all areas of the eye"--

Author : Peter Simcock
Publisher : Karger Medical and Scientific Publishers
Page : 114 pages
File Size : 41,27 MB
Release : 2015-08-10
Category : Medical
ISBN : 1908541725

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This fully updated new edition has been designed for ease and speed of use in clinical practice. It will empower you with the knowledge to triage your patients into three main groups: emergencies requiring immediate referral; non-emergencies requiring routine referral; or those with treatable conditions. Primarily intended for doctors, optometrists, ophthalmic nurses and other health professionals involved with eye care within the community, this refreshingly readable handbook discusses the major ophthalmological symptoms in the context of daily clinical practice. Contents: • Basic eye assessment: history and examination • Red eye • Blurred vision • Double vision • Other important symptoms • Gritty, itchy or watery eyes • Abnormal eye appearance and/or eye examination • Diabetes, hypertension and systemic medications • Eyelid disease • Children’s eye problems • Eye trauma • Useful resources

Author : Michael F. Land
Publisher : OUP Oxford
Page : 129 pages
File Size : 32,7 MB
Release : 2014-05-29
Category : Science
ISBN : 0191669792

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The eye is one of the most remarkable achievements of evolution, and has evolved up to 40 times in different parts of the animal kingdom. In humans, vision is the most important sense, and much of the brain is given over to the processing of visual information. In this Very Short Introduction, Michael Land describes the evolution of vision and the variety of eyes found in both humans and animals. He explores the evolution of colour vision in primates and the workings of the human eye, to consider how that contributes to our visual ability. He explains how we see in three dimensions and the basic principles of visual perception, including our impressive capacity for pattern recognition and the ability of vision to guide action. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

Author : Clyde K. Kitchen
Publisher : WestBow Press
Page : 371 pages
File Size : 39,16 MB
Release : 2014
Category : Health & Fitness
ISBN : 149082569X

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Comprehensive guide to normal and abnormal eye conditions written for patients to understand.