Focus.

Newborns can't see clearly at birth. In fact, vision is about 20/400, making the first days of sight very blurry, like a camera out of focus. But within a week, a baby can focus on objects about 8 to 12 inches from his face. Conveniently, this is about the distance between a mother and baby's face during feeding,

Levi is now 3 and a half week old and starts to look at close by object with bright colors or contrast.