As a Treatment for Cataracts (A Cloudiness of the Lens

Multiple Choice

As a treatment for cataracts (a cloudiness of the lens of the eye) , the natural lens is removed and a plastic lens is implanted. After this is done a person can see distant objects clearly, but he cannot
Accommodate to focus on nearby objects. If such a person wanted to read a book at a distance of 25
Cm, he would have to wear contact lenses having a diopter power of

A) -1.78 diopters
B) +3.33 diopters
C) -4.00 diopters
D) +4.00 diopters
E) +2.78 diopters