# 17-22-081

field of vision

extent of space in which objects are visible to an eye in a given position

Note 1 to entry: In the horizontal plane meridian the field of vision extends to nearly 190° with both eyes open, the area seen binocularly is about 120°, and the area seen by one eye only is about 154°.

Note 2 to entry: The extent of the field of vision tends to diminish with age.

Note 3 to entry: This entry was numbered 17-430 in CIE S 017:2011.

Publication date: 2020-12