Which vitamin is important for vision?

Vitamin A is essential for vision because it plays a critical role in the formation of rhodopsin, a pigment found in the retina that is necessary for low-light (night) vision. When light hits the retina, it causes rhodopsin to undergo a chemical change, which sends signals to the brain that are interpreted as visual images. Additionally, Vitamin A is involved in maintaining the health of the cornea and conjunctival membranes, which are crucial for overall eye function.

In contrast, while Vitamin C, Vitamin D, and Vitamin E have their own important roles in the body, they do not directly influence vision in the same way as Vitamin A does. Vitamin C is primarily an antioxidant and is important for immune function and skin health. Vitamin D helps with calcium absorption and bone health, while Vitamin E is known for its antioxidant properties, helping to protect cells from damage. None of these vitamins are directly involved in the visual processes governed by Vitamin A.