My puppy's entire right eye is completely blue, what's wrong with him?
Hi
Some puppies have one blue and one brown eye, it is a breed-specific trait. However, if his eye has changed color or is milky/blue chances are he's damaged the cornea in some way.
If he's got something in his eye that has scratched it, or has been in a fight etc, then it can cause this sort of reaction.
In that case he needs to be seen by a veterinarian right away as permanent damage can result from untreated eye injuries.
I hope this helps, if you're in any doubt have your vet examine your puppy. Best of luck.