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How to strengthen eyesight
Increase your lutein intake.
Lutein is a nutrient sometimes known as the eye vitamin. Consuming up to 12 mg per day of lutein can help slow the advance of age-related macular degeneration and other eye-related ailments.
Foods rich in lutein include : Green leafy vegetables. Kale, broccoli, and spinach will all give you a good dose of lutein.