is actually more important to eat corn, leafy green vegetables, and collard greens because they contain high levels of carotenoids called lutein and zeaxanthine. Because lutein and zeaxanthine are yellow, they efficiently absorb the blue light portion of visible light. Blue light is the major high-energy light that can damage the lens and the retina of the eye. When these two nutrients are present in the lens and macula, our eyes absorb blue light and minimize oxidative stress.