Final answer:
Vitamin C plays multiple roles in the body, including maintaining retina cells and serving as a coenzyme.
Step-by-step explanation:
Vitamin C is important for maintaining the rods and cones within the retina, which are responsible for vision in dim light and bright light respectively.
It also acts as a coenzyme in certain reactions that release energy from glucose. Additionally, vitamin C is needed to form strong collagen. While it is commonly known that vitamin C is water-soluble, it is worth noting that it can also dissolve in the fatty portions of foods.