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the ability to see; the visual faculty
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vision using the rods
sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)
vision involving the use of both eyes
vision using the fovea and parafovea; the middle part of the visual field
the normal ability to see colors
vision for objects that a 20 feet or more from the viewer
normal use of the faculty of vision
vision with only one eye
vision for objects 2 feet or closer to the viewer
the ability to see in reduced illumination (as in moonlight)
normal vision in daylight; vision with sufficient illumination that the cones are active and hue is perceived
vision at the edges of the visual field using only the periphery of the retina
normal visual acuity, as measured by the ability to read charts at a distance of 20 feet
unusually acute vision
vision with the fovea
three-dimensional vision produced by the fusion of two slightly different views of a scene on each retina
a particular sense
sensitivity to stimuli originating outside of the body
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