What is the medical condition, "oi"?

Osteoarthrits: Osteoarthritis commonly called "wear and tear" arthritis. Some people have a higher genetic instance. However, it usually not an inflammatory arthritis.

Brittle bones: osteogenesis imperfecta or brittle bone disease affects the mineralization of bones in people born with defective connective tissue known as collagen.These patients can fracture bones easily.There are eight types of OI from mild to very severe and sometimes fatal .DNA and collagen tests are used to differentiate.Some are autosomal dominant and some recessive.Eyes often have bluish gray sclera .