The vitamin known for enhancing vision is vitamin A. This essential nutrient plays a crucial role in maintaining healthy eyesight, particularly in low-light conditions. Vitamin A is found in two primary forms: retinol, which originates from animal products, and beta-carotene, a precursor found in plant foods like carrots, sweet potatoes, and spinach. It contributes to the formation of rhodopsin, a protein in the retina that allows for the perception of light. A deficiency in vitamin A can lead to vision problems, including night blindness and, in severe cases, can result in complete blindness. It is vital for overall eye health.