I am planning to purchase a border collie for a companion for my daughter from a local rancher who uses the mother and father as working/herding dogs. After looking at the puppies, the one I am partial to is much more mellow than the rest of her siblings, and has one eye which is blue, the other is brown. All of the other puppies have two brown eyes. I was wondering if anyone knows if an eye discolloration such as this is any indication of possible eye problems which I understand collies can be predisposed to.
