UPDATE,,,, well its been a while but i think i have finally figured out my rocky's tear staining problem.. as i said before he was on alot of medicines with his tail infection and ear infections and i thought it could be the problem.. but, after being off all that and reading alot of post i think we have solved the problem.. i can't remember who mentioned it but someone suggested that the rice in the food i was feeding him could be one problem.. i did switch his food and found one that my dog with the allergies and he can eat with no rice and his eyes are looking great.. they are not completely cleared up but i can see a hugh difference everyday they look better and better.. so looks like it was the food i was feeding him.. i am so relieved and i also notices his ear isn't getting full of that brown yucky stuff either.. hope this may help someone else thats having this problem