The patient asks about the meaning of his visual assessment of 20/40 using a Snellen visual acuity chart. What is the nurse's appropriate response?
A) "20/40 means your vision is about two times normal."
B) "A person with corrected vision can see at 20 feet what you can see at 40 feet."
C) "A person with normal vision can see at 20 feet what you can see at 40 feet."
D) "A person with normal vision can see at 40 feet what you can see at 20 feet."

Question

Quizplus · Accepted Answer

The top number of the recording indicates the distance between the patient and the chart, and the bottom number indicates the distance at which a person with normal vision should be able to read certain letters of the chart. Options A to C are incorrect interpretations of the data.

The Patient Asks About the Meaning of His Visual Assessment