My friend just got her B's eyes tested, she is "normal" in one eye, and has a tiny remnant spot in the other. The vet said it's not even a diagnosis, it's just a remnant discoloring, and he said it's Iris to Iris. He refused to diagnoze it as a PPM, and just made a comment on the form. From what I've read here, I understand that should not be a problem for CERF, and that dogs even with Iris to Iris PPM get CERFed. Is my understanding correct?