A Snellen chart is used to make the determination that someone is ______.
A)colorblind
B)legally blind
C)experiencing a field loss
D)able to use Braille

Question

Quizplus · Accepted Answer

A Snellen chart measures a person's visual acuity, specifically their ability to see letters from a certain distance. Legal blindness is defined as having 20/200 or worse visual acuity in the better eye with best correction, and Snellen charts are commonly used to make this determination. The other options (colorblindness, field loss, ability to use Braille) are not related to measuring visual acuity with a Snellen chart.

A Snellen Chart Is Used to Make the Determination That