It is very normal situation that new born babies to have crossed eyes now and then. It is a common occurence due to the lack of development of vision system at the beginning stage. The new born babies sometimes move their eyes independently or move outwards or inwards. Some young parents might find that their babies' eyes crossing. Don't worry too much. Babies still need some time to develop their vision system. It is gradually and stage by stage. When your baby is three or four months old, the baby could smoothly follow moving objects. Colors and moving objects can catch his/her attention easily. He/She would start to develop stereoscopic vision since the forth month. If your baby is 3-4 month old, and he/she still have eyes crossed sometimes, then it might be strabismus to be blamed for. You should take him/her to see a doctor. It refers to the misalignment of two eyes due to imbalance of muscles. It is easy to treat especially at the very beginning stage. The vision system will finish its development until he/she reaches 8 years old. There are several ways to treat it. You don't have to worry too much.
Well, yes, it is possible for new born baby to have crossing eyes. Generally speaking, in daily life, there are many people who have crossing eyes. But it is rare for new born baby to have them. But on the other hand, you should not take some treatments at the first stage. And then, crossing eyes may go away by it. But on the other hand, if your baby still has crossing eyes, you may need to talk it with the doctor, or it can be dangerous, for It can be related with some other eye problems, such as eyestrain, blurry vision, double vision, and headaches.
As a matter of fact, it is normal for a newborn baby to have crossed eyes. In most cases, it can heal itself without any specific treatment. As we all know, it is the nerves and muscles that control the baby's eye development. Before his or her entire visual system getting into full maturity, crossed eyes may happen.
However, after three or four months, your baby's eyes ought to be able to focus on objects by looking straightly with both eyes. If your baby still have crossed eyes and do not improve, you had better take him to see a doctor.