When you've completed a visual acuity test, you'll get results as a fraction. The top number refers to the distance you stand from the chart. In most cases, this will be 20 feet.

This measurement on a visual acuity test is recorded as a fraction, with 20/20 being considered normal vision. Related: Visual Acuity Test: Having Trouble Seeing Objects Far Away.

The Food and Drug Administration (FDA) has granted 510(k) clearance to Visibly Digital Acuity Product, an at-home online visual acuity test for use by individuals 22 to 40 years of age who have ...

This test measures both visual acuity and contrast sensitivity. Other tests used are the Functional Acuity Contrast Test, the Cambridge test, MARS test, and the Test Chart 2000.

Poor visual acuity, ... To test distance visual acuity, all were asked to read letters on lines from the top to the bottom of a chart while wearing prescribed optical correction.