Whether you squeeze some in a juice, peel one as a snack or chop them into a fruit salad: an orange a day can help keep eye conditions at bay. Rich in vitamin C, a powerful antioxidant that's key for eye health, all citrus fruits can contribute to healthy blood vessels in your eyes. This helps you fight off cataracts, age-related macular degeneration (AMD) and other eye conditions. In fact, orange-coloured fruits and vegetables, such as sweet potatoes, carrots, mangos and apricots, are high in beta-carotene - a form of vitamin A that helps strengthen your eyes' ability to adjust to darkness.