This week on Genome Barks, we welcome Dr. David Whitley, a board certified ophthalmologist at Iowa State University.  Dr. Whitley has focused his research efforts on corneal diseases of the dog, and Mucopolysaccharidosis Type I (MPS I).  In this podcast, we discuss the Canine Eye Registration Foundation (CERF), what the exam entails, why participating in the CERF registry is important for breeders and owners, and what some of the most common eye diseases are in the dog.