- Description: Zeaxanthin is a carotenoid found in high quantities in the retina (macula) of the eye. It filters harmful high-energy blue wavelengths of light from the sun, and helps to protect and maintain healthy cells in the eyes. The amount of zeaxanthin in the macular region of the retina is measured as macular pigment optical density (MPOD). Recently, MPOD has become a useful biomarker for predicting disease and visual function. - Ocular Benefits: A recent study demonstrated that higher dietary intake of lutein and zeaxanthin and vitamin E was associated with a significantly decreased risk of cataract formation. It may also inhibit VEGF and prove useful for diabetic retinopathy and wet macular degeneration. Beyond reducing the risk of eye disease, separate studies have shown that lutein improves visual performance in AMD patients, cataract patients, and people in good health. - Sources: gogi berries, orange bell peppers, green leafy vegetables (kale, spinach, and collards), corn, green peas, broccoli, green beans, and eggs - Dietary Recommendations (according to the U.S. Food and Drug Administration (FDA)): there is no RDA for zeaxanthin. For eye health: 2 mg/day. Zeaxanthin