The disorder is caused by degeneration of the fibers that hold the lens in place. Primary Lens Luxation (PLL) is a condition that can cause the lens of the eye to become loose and eventually displace. Juvenile encephalopathy is a brain disorder causing epileptic seizures and progressive brain damage. Juvenile Encephalopathy (Discovered in the Parson Russell Terrier) Hyperuricosuria (HUU) is a condition that predisposes affected dogs to the formation of urinary stones, such as kidney or bladder stones. Parson Russell Terrier Genetic Health ConditionsĪmelogenesis Imperfecta (Discovered in the Parson Russell Terrier)Īmelogenesis imperfecta (AI), also known as enamel hypoplasia, is a disorder where the hard enamel covering of the teeth is thin, roughened and discolored.Ĭhondrodystrophy (CDDY) and Intervertebral Disc Disease (IVDD) RiskĬhondrodystrophy (CDDY) is a skeletal disorder characterized by shortened limbs and abnormal early degeneration of the spinal discs, or intervertebral disc disease (IVDD), which predisposes to disc herniation.
