A 52-year-old patient reports that he must hold his paper farther and farther away from his face to read it. What is the nurse's most informative response?
a. "You are describing myopia. Glasses will help you read."
b. "You may have astigmatism, but your eyes will finally adjust."
c. "You have presbyopia. Nonprescription reading glasses will help you."
d. "An eye infection may be the problem. Check with your physician for medication."