Ocular
Refers to the eye.

Orthopedic Foundation for Animals (OFA)
The OFA is a research and diagnostic service and registry for Hip Dysplasia, Elbow Dysplasia, Patellar Luxation, Craniomandibular osteopathy, and other genetic orthopedic diseases.

Osteochondrosis
A painful malformation of the joint cartilage which can affect puppies of rapidly growing large breeds. Osteochondrosis dissecans occurs when the affected area is further traumatized and a cartilage "flap" develops, resulting in acute pain.

Otic
Refers to the ear.