D.N.
A lot have replied that it could be allergies. It could also be a virus that just needs time to go away. If he continually rubs his eye, then I would try to get him in or take him to a clinic to have it checked. If it does not bother him too much, then Thursday really is not that far away. I have had a virus in one of my eyes many times and people at work would insist that it was pink eye. The worst part is waiting for it to go away, which takes about as long as pink eye does. I don;t get the goop but my eye is more sensitive at that time. No drops for a virus, just the bacterial conjunctivitis. BTW, my daughter has had pink eye where she did not get the goop. One time her eye swelled up almost shut and another time it was just really pink with a little bit of goop in the morning and that was it.