Lutein and zeaxanthin are carotenoids found in highest concentration in the macular region of the eyes.They are believed to help filter out damaging blue light and prevent free radical damage to the delicate structures in the back of the eye. They have functions of significant eyes protection like: Prevents age-related macular degeneration (ARMD), May help prevent glaucoma and cataracts, Supports normal eye health, Antioxidant