Eye movement normal?

A

My son was 4 months early. He's 2 months old. I've noticed that his right eye kind of goes all over the place when he's looking around but his left eye will focus on whoever is talking to him. I don't have a whole lot of experience with infants and zero experience with a baby born so early. Has anyone else experienced this? Is it a preemie thing or an infant thing or just not normal?