What vitamin is primarily associated with improved vision health?

Vitamin A is primarily associated with improved vision health due to its crucial role in the formation of rhodopsin, a pigment found in the retina that is essential for the ability to see in low-light conditions. It also helps maintain the health of the cornea, which is the outer layer of the eye, and supports overall eye function. A deficiency in vitamin A can lead to night blindness and other vision problems. This vitamin is also important for the proper functioning of the conjunctival membranes and cornea, contributing to general eye health. While the other vitamins mentioned play significant roles in overall health and have antioxidant properties, they are not specifically linked to vision as directly as vitamin A.