The eyes of newborns can see objects, newborns have the ability to visual sense after birth, the pupil has a light reflex, in a quiet, awake state can briefly gaze at objects, but can only see things within 15-20cm. At two months, they can look at objects in a coordinated way, and begin to have head and eye coordination; at 3-4 months, they like to look at their hands, and their head and eye coordination is better; at 6-7 months, their eyes can follow objects moving up and down, and rotate vertically; at 8-9 months, they begin to have a sense of depth of vision, and are able to see small objects; at 18 months, they can distinguish various shapes; at two years old, they can distinguish between vertical and horizontal lines; at five years old, they can distinguish various colors; at six years old, they can distinguish various colors; at six years old, they can distinguish various colors; at six years old, they can distinguish various colors. By the age of five, children can distinguish between colors; by the age of six, depth of vision is fully developed.