I have a Dane/Lab mix(we call him the Dane-ador) and last night when we put him up for the night, he was fine. This morning we go to let him out and his right eye is cloudy. Looks like a cataract like in a human but how could that happen overnight so sudden? We are taking him to the vet in the morning but I was just wondering if anyone had any ideas as to what else it might be. We are kinda worried. His name is Toby, by the way.