Optica has been formulated to offer comprehensive nutritional protection for the eyes. Each serving has a proven dose of Lutein, a critical pigment of the macula, lens, and other ocular tissues. Lutein is a free radical scavenger related to beta-carotene that defends the eye from the ravages of sunlight. We have also included Green Tea Extract, Alpha Lipoic Acid and Grape Seed Extract in this formula to maximize its free radical scavenging potential.