A Snellen chart is used to make the determination that someone is _____________.
A) Colorblind
B) Legally blind
C) Has a field loss
D) Able to use Braille

Question

Quizplus · Accepted Answer

A Snellen chart is used to measure visual acuity, which determines if a person is legally blind or not. Legally blind is defined as having a visual acuity of 20/200 or worse with correction, or having a visual field restricted to 20 degrees or less. A Snellen chart cannot determine colorblindness, field loss, or the ability to use Braille.

A Snellen Chart Is Used to Make the Determination That