Roxy's parents adopted her when she was 4 years old, and over the years she was always the happiest, most active dog they'd ever met. Then one day, Roxy began to change.
"In March, she didn't get to the ball before our other dog, Murphy, which was very unusual," John Redmond, Roxy's dad, told The Dodo. "We went to a local vet who thought she had an eye infection and gave us drops. The next day she was bumping into things and walked off a sea wall."