Although the retina is not fully developed after birth, the retina is capable of visual function at this time. At birth, they are usually able to distinguish between light and dark and bright colors in their surroundings. Vision improves with age, and by the time the baby is full term, it is usually able to distinguish the outline of things. Within one year of age, the retinal function develops very rapidly, and vision is usually improved to about 0.2 by one week of age, and should be about 0.3-0.4 by two weeks of age. Vision improves by about 0.2 for every year of age, so even premature babies are able to see after birth, but their vision will go through a developmental process from low to high. If you find that your baby’s eyes can’t follow brightly colored objects, it means that your baby’s vision development is impaired and you need to go to the pediatrician and ophthalmologist at the hospital for an examination as soon as possible.