Lutein and zeaxanthin are carotenoids with strong antioxidant effects. Lutein and zeaxanthin are the main components of plant pigments such as corn, vegetables, fruits, and flowers, and are also the main pigments that constitute the macular region of the human eye. The main physiological functions of lutein in the eye are as antioxidant and photoprotective. Domestic and foreign studies have found that the concentration of lutein in the human retina is related to visual acuity and the occurrence of age-related macular degeneration. At the same time, ingesting foods high in lutein can help reduce and delay the aging, degeneration, and lesions of the eyes, reduce the incidence of eye diseases, and protect the retina from light damage.