vision : Idioms & Phrases

Index

achromatic vision

  • noun vision using the rods
WordNet

Arc of vision

  • (Astron.), the arc which measures the least distance from the sun at which, when the sun is below the horizon, a star or planet emerging from his rays becomes visible.
Webster 1913

Beatific vision

  • (Theol.), the immediate sight of God in heaven.
Webster 1913

binocular vision

  • noun vision involving the use of both eyes
WordNet

central vision

  • noun vision using the fovea and parafovea; the middle part of the visual field
WordNet

chromatic vision

  • noun the normal ability to see colors
    chromatic vision; trichromacy.
WordNet

color vision

  • noun the normal ability to see colors
    chromatic vision; trichromacy.
WordNet

color vision deficiency

  • noun genetic inability to distinguish differences in hue
    colour blindness; color vision deficiency; color blindness.
WordNet

colour vision deficiency

  • noun genetic inability to distinguish differences in hue
    colour blindness; color vision deficiency; color blindness.
WordNet

daylight vision

  • noun normal vision in daylight; vision with sufficient illumination that the cones are active and hue is perceived
    daylight vision.
WordNet

Direct vision

  • (Opt.), vision when the image of the object falls directly on the yellow spot (see under Yellow); also, vision by means of rays which are not deviated from their original direction.
Webster 1913

distance vision

  • noun vision for objects that a 20 feet or more from the viewer
WordNet

double vision

  • noun visual impairment in which an object is seen as two objects
    diplopia.
    • diplopia often disappears when one eye is covered
WordNet

Field of vision

  • noun all of the points of the physical environment that can be perceived by a stable eye at a given moment
    visual field; field of regard.
WordNet
  • field of view. See under Field.
Webster 1913

foveal vision

  • noun vision with the fovea
WordNet

Indirect vision

  • (Opt.), vision when the rays of light from an object fall upon the peripheral parts of the retina.
Webster 1913

line of vision

  • noun an imaginary straight line along which an observer looks
    line of sight.
WordNet

monochromatic vision

  • noun complete color blindness; colors can be differentiated only on the basis of brightness
    monochromasy; monochromia; monochromatism; monochromacy.
WordNet

monocular vision

  • noun vision with only one eye
WordNet

near vision

  • noun vision for objects 2 feet or closer to the viewer
WordNet

night vision

  • noun the ability to see in reduced illumination (as in moonlight)
    night vision; scotopic vision; night-sight.
WordNet

peripheral vision

  • noun vision at the edges of the visual field using only the periphery of the retina
WordNet

photopic vision

  • noun normal vision in daylight; vision with sufficient illumination that the cones are active and hue is perceived
    daylight vision.
WordNet

Reflected vision, ∨ Refracted vision

  • vision by rays reflected from mirrors, or refracted by lenses or prisms, respectively.
Webster 1913

scotopic vision

  • noun the ability to see in reduced illumination (as in moonlight)
    night vision; scotopic vision; night-sight.
WordNet

stereoscopic vision

  • noun three-dimensional vision produced by the fusion of two slightly different views of a scene on each retina
    stereoscopy.
WordNet

tunnel vision

  • noun visual impairment involving a loss of peripheral vision
WordNet

twilight vision

  • noun the ability to see in reduced illumination (as in moonlight)
    night vision; scotopic vision; night-sight.
WordNet

vision defect

  • noun impairment of the sense of sight
    visual impairment; visual defect; visual disorder.
WordNet

Vision purple

  • . (Physiol.) See Visual purple, under Visual.
Webster 1913