Dietary Supplement Healthy Vision Eye Function Antioxidant Gluten-Free No Artificial-Preservatives Potency & Quality Guaranteed An FDA Regulated Facility Carlson - Providing the highest quality nutritional supplements since 1965 Lutein and zeaxanthin are carotenoids that give fruits and vegetables their yellow and red pigments. They're found in high amounts in the retina's macular region, an area vital to healthy vision. Studies suggest high levels of lutein and zeaxanthin in eye tissue are associated with healthy vision, which is why a diet rich in these antioxidants is often recommended.