Newborns are only able to see objects in front of them for 1 month after birth, and will not respond to brightly colored objects until more than 2 months later. In the case of premature babies or children with poor nutrition, it may take longer. At 1 month of age, the child can see only about 10 cm in front of him or her, and at 2 months of age, the child’s eyes can follow the movement of objects, but the field of vision does not exceed 90 degrees, and he or she will catch sight of brightly colored objects. 3 months of age, the child’s vision is already more sensitive to color and likes bright colors, such as red and yellow. When lying in the supine position, both eyes will follow the walking person for a short time to focus on, and will begin to look for items that disappear in the field of vision, and the field of vision will gradually expand beyond 90 degrees. Parents pay attention to show newborn babies more brightly colored things, avoid direct eye glare, and can go out more often to contact different things to promote the visual development of newborn babies.