
I'm using Eye Envy from Hub on my Cavalier, it's not bad stuff. The most important thing is to wipe the eyes at least once a day if not more, so that the deposits don't get a chance to stain. If they are young dogs they might grow out of it, my older girl did. Also with shih tzus, the groomer should be trimming the hair under the eyes (assuming they aren't show dogs!) as with such short faces it's a hot bed for infection under there.