Infant perception is one of the topics that is questioned the most. In infant perception, the most common thing studied is how much detail infants are actually able to see. Vision is extremely poor at birth, which is said to be about 20/400 to 20/600 when the infant is about 1 month old. This actually means that in order for an infant to see as clearly as an adult, an infant must be 20 feet from something which an adult is able to see from 400 feet away. Between 6 and 9 months, the vision of an infant continues to get better, however it is not until after the baby is one, that the vision is that of an adult. The reason for this is because at birth, a babies visual cortex is not fully developed along with poorly developed cone receptors.
The following link describes the type of vision an infant has: http://video.about.com/babyparenting/Understanding-infant-vision.htm