Poor guy, I always hate it one of my gang has eye problem. When they do the 1/2 closed eye routine they look so pathic. Usually a days dose (3x a day) of an rx onitment I have on hand helps allot and next day they are good as new. I have to ask our new vet for a newer tube, this one is about yr or so old but it still works great. PetSmart carries a natural eye wash thinking about picking some up. Usually it appears to be dust or tiny furhair in their eye that has to work it's self out. No discharge comes out.