A nurse is completing a vision exam with the Snellen eye chart and records the client's vision as 20/30 or 6/9. The client asks the nurse, "What does that mean?" How should the nurse respond?a. "Your vision is perfect; you can read the entire chart and you do not need glasses." b. "You are able to read at 20 ft (6 m) what a person with normal vision can read at 30 ft (9m)." c. "Your vision in your right eye is slightly different than that of your left eye." d. "Your vision is better than average; you can read from 30 ft (9 m) what a person with normal vision can read from 20 ft (6 m)."e. "You are able to read at 20 ft (6 m) what a person with normal vision can read at 30 ft (9m)."

A snellen eye chart is used by the ophthalmologist for the measurement of visual acuity or clarity of a person's vision. It contains symbols which are referred to as optotypes

To interpret the result of a client's vision from the snellen eye chart, the top number shows the distance at which the client is standing from the chart while the denominator shows the distance at which a normal eye can see. Telling the client that vision is perfect or that vision is above average or that one eye is better than the other is not appropriate.

As in the question, if the nurse records the client's vision as 20/30 or 6/9, it then means that the client can read at 20 feet away what a person with a normal vision can read at 30 feet away, or the client can read at 6 meters what a person with a normal vision can read at 9 meters.