Question

A client who presents for an eye examination is diagnosed as having a visual acuity of 20/40. the client asks the nurse what these numbers specifically mean. what is a correct response by the nurse?

Answer 1

A person whose vision is 20/40 can see an object from 20 feet away that a person with 20/20 vision can see from 40 feet away.

A Snellen chart is a type of eye chart used to assess visual acuity. Snellen charts are named after Herman Snellen, a Dutch ophthalmologist who invented them in 1862. .

A Snellen chart is commonly used to assess visual acuity. Snellen charts show letters getting smaller and smaller. 20/20 is considered "normal" vision. This means that at 20 feet, the test subject sees the same line of letters that a person with normal vision sees at 20 feet.

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