I have a 7 year old rhode island red and she is blind all a sudden! No injuries or sickness. Will eat grass,but no feed or scratch...probably because she cant find(see) the feed bowl. She walks slow and carefully and runs into things. Its only day 2,so is there any reason for this blindness all of a sudden? Can this be fixed? Is this a sign of old age? Can the vet help her? Anybody?