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10 Ways to Improve Your Eyesight Get enough key vitamins and minerals. Vitamins A, C, and E, as well as the mineral zinc, contain antioxidants that can help prevent macular degeneration. Don't forget the carotenoids. A few other nutrients are also keys to improving eyesight. ... Stay fit. ... Manage chronic conditions. ... Wear protective eyewear. ... That includes sunglasses. ... Follow the 20-20-20 rule. ... More items...