Sweet Potato
Sweet potatoes are a Superfood for your eyes because one serving (one 5 inch long sweet potato) is a top source of vitamin A (providing over 360% of the Daily Value), a nutrient that helps maintain eye health. Research shows vitamin A helps the eye to adapt from bright light to darkness, while inadequate intake can lead to night blindness and poor vision in dim light. Several studies have also reported that carotenoids seem to lower the risk of age-related macular degeneration (AMD). One study found a 43% lower risk of AMD in people whose intake of carotenoids was highest versus lowest.
Bonus: Sweet potatoes provide one of the best sources of beta-carotene. Some research suggests this uber-antioxidant may prevent cancer both by neutralizing free radicals and by promoting communication between cells.