Mr. C's visual acuity is 20/50. This means that he:
A) can see 50% of what the average person sees at 20 feet.
B) has perfect vision when tested at 50 feet.
C) can see 20% of the letters on the chart's 20/50 line.
D) can read letters while standing 20 feet from the chart that the average person could read at 50 feet.

Question

Quizplus · Accepted Answer

Visual acuity is measured as a fraction, in which the top number is the distance that the patient is standing from the chart; the bottom number is the distance that an average person can stand and still read the line.

Mr C's Visual Acuity Is 20/50