Are asymmetric eyes normal? (photo)

As you can see from the pictures, the iris in eye B seems to be located slightly more towards the "end of the skull" than the iris in eye A. I suspect it might look like this because of the eye socket under eye A sitting deeper into the skull (is it so?). I know it's not by much, and that I probably am the only one to notice it. But I wonder, is this a normal variant of asymmetry? Thanks a lot for your time, dear doctors!