Carrots are the vegetable most known for helping eyesight due to their high beta-carotene content, which the body converts into vitamin A. Vitamin A plays a crucial role in maintaining healthy vision, enabling the eye to adjust to changes in light conditions and preventing night blindness. Additionally, this nutrient helps support the health of the retina, where light is converted into nerve signals for the brain. While carrots are often highlighted for their eyesight benefits, a balanced diet rich in various fruits and vegetables is essential for overall eye health.