field of vision
vision (vizh´
n),
Etymology: AS, feld + L, visio, seeing
the area of space in which objects are visible at the same time when the eye is fixed and the face is turned so as to exclude the limiting effects of the orbital margins and nose.
vision (vizh´
n),n sight; the faculty of seeing.
vision, direct,
n the category of sight in which an image is focused directly on the macula of the retina. Also called
central vision.
central vision.
vision, field of,
n the portion of space that the fixed eye can see.
vision, indirect,
n 1. in dentistry, the capacity to see the treatment area by using a oral cavity mirror.
n 2. the category of sight in which an image is focused on an area of the retina other than the macula. Also called
peripheral vision.
n 2. the category of sight in which an image is focused on an area of the retina other than the macula. Also called
peripheral vision.
)
Indirect vision.
vision, stereoscopic,
n vision in which the visual fields of the two eyes are unified. Sensations from a common object received by the two eyes are superimposed, and as a result of the slight differences in the fields and the superimposition of the fields, the effects of depth and shape of the object are attained.
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