Eye Essentials is a high-potency lutein and zeaxanthin product to be taken either on its own, or with any Viteyes formula. What makes lutein unique from other antioxidants such as vitamin C or beta-carotene is the fact that it is highly concentrated in the macula, the part of the eye that’s responsible for central vision. Like lutein, zeaxanthin is found in the macula, however it is much more concentrated in the centre part of the macula compared to lutein.