When Obtaining a Health History from a 52-Year-Old Patient, Which

When obtaining a health history from a 52-year-old patient, which patient statement will be of most concern to the nurse?

A) "My vision seems blurry now when I read."
B) "I have noticed that my eyes are drier now."
C) "It is hard for me to see when I drive at night."
D) "The middle part of my vision is decreased."