The clarity or clearness of vision, a measure of how well a person sees.

the level of clarity, or acuteness, of visual perception. It might be gauged in many manners, by testing one

Visual Acuity refers to the sharpness, clearness and focus of a person's vision. It is a measure of the eye's spatial resolution, or ability to perceive shapes and figures in a 3-dimensional [..]

Sharpness of vision.

Clearness of vision. The ability to distinguish details and shapes of objects; also called central vision.

The eye's ability to see sharply, usually measured in comparison to what a normal eye would see from 20 feet. Problems in visual acuity can usually be corrected with eyeglasses.

Visual acuity refers to the sharpness or clarity of an individual’s vision.

Clarity or sharpness of Ocular Vision or the ability of the eye to see fine details. Visual acuity depends on the functions of Retina, neuronal transmission, and the interpretative ability of the Brai [..]

Acuteness or clearness of vision, especially of form vision, which is dependent mainly on the sharpness of the retinal focus.

Sharpness of vision, measured by the ability to discern letters, numbers or shapes at a given distance, according to a fixed standard.

The space visible to an eye in a given position of gaze.

the measurement of vision by reading letters on a chart.