The area or extent of space visible to an eye in a given position of gaze The central visual field is directly in front and the target at which we are looking The peripheral visual field is that which we perceive in our "side vision" The fields of each eye partly overlap
The entire area which can be seen without shifting the gaze It is a measure of the peripheral vision There are different instruments to determine the visual field in the eye clinic
The normal field of vision is about 140 degrees for each eye (monocular vision) and about 180 degrees for both eyes (binocular vision) Coloboma can reduce the field of vision
That part of the world around an individual can see while looking straight ahead Normally, the visual field is determined more precisely by checking each eye individually to test for blind spots Such blind spots could signify glaucoma-related damage to the retina or optic nerve
The area of vision to the side when one is looking straight ahead Defects in the sensitivity of the peripheral vision can be helpful in diagnosing many types of visual and general health conditions