Yesterday morning, I heard my 6-year old male shih tzu, Comet, yelping. I ran out of my room and pulled open the back door, but my two dogs weren't fighting anymore. However, Comet's eyes were red and blood was dripping from one of them. I locked Jada in the garage and carried Comet into the kitchen. A few months ago we rushed him to the vet because his left eye was protruding out of the socket. The vet popped it back in, but was stumped as to what could have caused it to happen. But...