What is the normal value of human vision?

For adults, the normal value of visual acuity should be ≥1.0.

Visual acuity refers to the ability of the retina to distinguish the minimum distance between two points, which can be divided into distance vision and near vision. The main purpose of near vision examination is to understand the adjustment ability of the eye; near vision and distance vision can be used to preliminarily diagnose whether there is refractive error, fundus lesions, etc. The normal value of general adult vision should be ≥1.0. If the uncorrected vision is lower than 1.0, it is suggested that the vision is low. It may be related to visual fatigue, refractive error or fundus disease. It is suggested to go to the hospital in time to take relevant examination to clarify the specific cause.