NOW Foods Ocu Support contains a comprehensive array of antioxidant nutrients that may aid in the maintenance of certain important visual functions. One daily dosage of Ocu Support contains 10 mg of lutein, a pigment found in dark green leafy vegetables. The macular area of the eye is primarily composed of lutein. The antioxidant vitamins A, C, and E are also present, along with supplementary minerals important for scavenging sunlight-generated free radicals. Bilberry extract also contains biologically active flavonoids that help maintain good vision.