Southern College of Optometry is a college of optometry in the United States. It is located in Memphis, Tennessee and is dedicated to the study of optometry, the field of medicine that includes not only the performance of refractive eye examinations and the fitting of necessary corrective lenses or vision therapy, but also the diagnosis and treatment of numerous ocular diseases. After completing a 4-year graduate program, students at SCO receive the degree of Doctor of Optometry (OD). SCO has often been distinguished for its high National Board passage rates. The college has consistently surpassed the average National Passage Rate, and currently holds passage rates of 92%, 98%, and 99% on Part I, Part II, and Part III respectively of the most recent National Board Examinations.