As it gets darker, older people have a hard time adjusting to the light levels and seeing well. In some cases, this can be treated with vitamin __________.
A) A
B) B
C) C
D) D

Question

Quizplus · Accepted Answer

Vitamin A is essential for vision because it helps the retina -- the part of the eye that receives light -- to function properly. Vitamin A deficiency can lead to night blindness, which makes it difficult to adjust to low light levels. Therefore, supplementing with vitamin A can help older people see better in the dark.

As It Gets Darker, Older People Have a Hard Time