Eat Right Practice Exam

Which vitamin is primarily associated with eye health?

1. Vitamin B12

2. Vitamin C

3. Vitamin A

4. Vitamin D

The correct answer is: Vitamin A

Vitamin A is primarily associated with eye health because it plays a critical role in maintaining normal vision. One of the most vital functions of Vitamin A is its contribution to the formation of rhodopsin, a protein in the eyes that enables us to see in low-light conditions. Additionally, Vitamin A is essential for the overall integrity of the cornea, which is the outer layer of the eye. A deficiency in Vitamin A can lead to several serious eye issues, including night blindness and conditions like xerophthalmia, which is characterized by dry eyes and can result in severe vision impairment if untreated. In contrast, other vitamins listed have different health benefits. Vitamin B12 primarily supports nerve health and red blood cell formation, Vitamin C is well-known for its role in immune function and skin health, and Vitamin D is best recognized for its involvement in bone health and calcium absorption.