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.

Test your visual acuity with this optical illusion challenge now! People with the highest visual skills can find the ...

Theta 2 Orionis A shines at magnitude 5.0 but, to the unaided eye, its light combines with neighboring Theta 2 Orionis B (magnitude 6.2 and about 1′ away), giving it an extra visual kick.

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.

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 ...

Visual acuity measured with the Dyop test varies significantly from ETDRS results under mesopic and blur conditions, ...

The number '0 is hidden in plain sight among the letter O in this visual illusion picture. Only 1% with 20/20 vision can spot ...

A novel, at-home test was accurate and reliable in measuring near visual acuity and may be a helpful self-monitoring tool for patients with chronic ocular conditions or limited access to ...

News; Weird News; Brainteasers; Only those with the 'highest visual acuity' can spot odd number in sea of 9s Avoid getting distracted by the sea of number nines in this tricky brain teaser, and ...