Although the two eyeballs of normal newborns are formed, their vision is not fully developed. Will respond to light, but the development of the eyes is not complete, the visual structure and optic nerve are immature, and the vision is only 1/30 of that of an adult. He can follow the object in front of him to see, but his field of view is only about 45 degrees, and his vision is only 1/30 of that of an adult. And he can only follow people or things in the horizontal direction and 18 to 38 cm in front of him. Newborns prefer to look at more complex shapes and curves, as well as sharp contrasting colors.
