叶黄素类物质为膳食类胡萝卜素，主要存在于视网膜组织中，为黄斑色素发挥抗氧化活性和蓝光滤过作用。近年来，有研究证实，叶黄素类物质可降低色差，提高视力及对比敏感度等功能，并对于年龄相关性黄斑变性、视网膜光损伤等疾病具有防治作用。

Xanthophylls is a kind of dietary carotenoid, which is mainly located in retina, and plays an important role in antioxidant and blue light ffltration. Lutein, zeaxanthin and meso-zeaxanthin can enhance visual performance by decreasing chromatic aberration and enhancing contrast sensitivity, and they can also prevent age-related macular degeneration and retinal light-induced injury.