Visual acuity

IGNOU SERVICE August 01, 2021

Visual acuity (VA) commonly refers to the clarity of vision, but technically rates an examinee’s ability to recognize small details with precision.

Visual acuity is dependent on optical and neural factors, i.e.

(1) the sharpness of the retinal image within the eye,

(2) the health and functioning of the retina, and

(3) the sensitivity of the interpretative faculty of the brain.

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