Mindblown: a blog about philosophy.
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Visual angle
The angle between the line of sight and the extremities of the object seen.
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VistA-Office electronic health record
Electronic medical record software developed by the U.S. Veterans Administration and marketed to private medical practices beginning in 2005.
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Visiting nurse association
A voluntary health agency that provides nursing services in the home, including health supervision, education and counseling, and maintenance of the medical regimen. Nurses and other personnel such as home health aides who are specifically trained for tasks of personal bedside care provide the services offered by the agency. These agencies originated in the visiting…
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Visitability
Residential home accessibility, i.e., a group of design features that help people with disabilities to enter, maneuver in, and use the toilet in every newly designed home. Some architectural features of homes with visit ability include having at least one entrance without a step, 32-in wide passages from one room to another, and an easily…
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Vision without sight
The ability of individuals who are blind and unable to perceive visual stimuli, including bright light, to respond to light.
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Phantom vision
An experience of visual sensations following surgical removal of an eye; usually a transient condition.
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Dichromatic vision
A form of defective color vision in which only two of the primary colors are perceived.
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Day vision
A condition in which one sees better during the day than at night, found in peripheral lesions of the retina such as retinitis pigmentosa.
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Central vision
Vision resulting from light falling on the fovea centralis. Sight using the macula lutea of the retina.
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Artificial vision
A technique, still in the experimental stage, designed to make it possible for some persons who are blind to see as a result of electrical stimulation of the retina or the connection of digital video cameras to the visual cortex of the brain.
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