For infants and young children’s visual health, lutein, vitamin A, DHA and unsaturated fatty acids are all important nutrients that are beneficial to the healthy development of children’s eyes. Lutein is like an “invisible sunglass”, which is highly concentrated in the macular region of the retina of infants and children, and can effectively protect the retina of infants and children from blue light damage, playing a barrier role for the young eyes of infants and children. In addition, lutein, as an antioxidant, can effectively help protect the retina from oxidative damage. However, the human body cannot synthesize lutein and needs to obtain it from food. Breast milk is rich in lutein. If you cannot breastfeed or do not have enough breast milk, you should choose lutein-rich formula for your infant or toddler, or be careful to let your infant get lutein from your daily diet, such as spinach, kale and other dark green vegetables. Foods rich in vitamin A include egg yolk, milk, animal liver and butter fortified with vitamin A. DHA is mostly found in sea fish such as mackerel and salmon and in foods such as shellfish. Unsaturated fatty acids are mostly found in meat, poultry and eggs.