Hi my 20 month old son keeps rolling his eyes upwards. It happens once or twice a day at anytime and lasts around 5 seconds or so. When he does it one eye seems to drive outward. He sometimes scrunches up his face too. His eyesight seems fine he manages to see small things from a distance for example if a small spider was running across the floor he'd see it from across the room. It has been happening for a few months now and at first I thought it was just something he has learned and does it to be silly but now I'm not so sure and starting to get a bit worried about it. I am currently on hold to the GP in hopes to get an appointment about this but I am just wondering if anyone can relate/know what it could be.