Developed by doctors, MaxiVision Lutein Formula is a top-quality supplement based on the National Eye Institutes Age-Related Eye Disease Study 2(AREDS2) research that showed the beneficial effect the nutrients lutein and zeaxanthin can have in supporting eye health, including preserving macular pigment optical density. In addition, it provides 355 mg of spinach powder to supply additional lutein plus iron, vitamin K and folate. With this blend, MaxiVision Lutein Formula provides the levels of the key eye nutrients needed from foods eggs and dark, leafy vegetablesbut rarely supplied by a regular daily diet, especially as we age. Convenient to take and manufactured to highest international standards.