Get antioxidant protection for vision health with NOW® Lutein & Zeaxanthin. These free-radical-fighting carotenoids protect the macula, the part of the eye that enables central vision. Lutein and zeaxanthin help to filter out blue light, high-energy visible light that can damage light-sensitive cells in the eye. Digital devices are a common source of blue light; prolonged exposure to these screens can cause eye fatigue and strain. NOW Lutein & Zeaxanthin delivers 25 mg lutein and 5 mg zeaxanthin from patented Lutemax® 2020.