More: Fergus and Oakley are both rescue dogs that adore the outdoors, despite their disabilities. Fergus is a diabetic and is blind. Blue eyed Oakley serves as his seeing eye dog, despite having a disability himself. Oakley has hypertrophic Osteodystrophy, which is a bone/joint disorder that he will hopefully outgrow by the time he’s 2 years old (when we can guess him to be full grown).