Newborn children have some vision in their eyes, but their range of vision is small, usually about 20 centimeters. It is known that newborns have photoreception, in the light stimulation can appear closed-eye action, 4 ~ 8 weeks when there has been a protective transient reflex, 2 ~ 3 months when the performance of the ability to gaze, 4 ~ 5 months when the shape of the object can be identified, the color, to know the mother, 1 ~ 1.5 years of age with incomplete collection function, 2 years of age, visual acuity up to 0.5, 3 years of age can have normal vision. Newborns are more sensitive to the color red. When a red object is placed within the child’s range of vision, the baby’s vision will move with the object. In this way, you can observe whether your newborn’s vision is normal or not.