Gary Heiting, OD
Undated
Good nutrition is important to keep your eyes healthy and functioning their best throughout your lifetime. Two very important eye nutrients that may reduce your risk for macular degeneration and cataracts have names you may not be familiar with: lutein (LOO-teen) and zeaxanthin (zee-ah-ZAN-thin).
Lutein and zeaxanthin are two types of carotenoids (kuh-RAH-teh-noids), which are yellow to red pigments found widely in vegetables and other plants. Though lutein is considered a yellow pigment, in high concentrations it appears orange-red.
In nature, lutein and zeaxanthin appear to absorb excess light energy to prevent damage to plants from too much sunlight, especially from high-energy light rays called blue light.
Keep reading: https://www.allaboutvision.com/nutrition/lutein.htm