Why are the desks and chairs for students generally yellow? This is because the yellow table is more suitable for students’ eyes. Because this color has no effect on the lutein level of the eyes, while blue light will cause the lutein level of the eyes to decrease. Lutein and zeaxanthin are the main components of vegetable pigments such as vegetables, fruits and flowers, and also the main pigments in the macular region of the human retina. Lutein has special effects on the eyes. Lutein absorbed by the body is distributed to two parts of the eyes: retina, macular area and lens. People’s high intake of lutein can help delay the aging, degeneration and pathological changes of the eyes, reduce the incidence of eye diseases, and protect the retina from light damage. Therefore, most students’ desks and chairs are yellow.