Midwestern University Chicago College of Optometry (CCO) awards the degree Doctor of Optometry (O.D.) upon successful completion of the four-year professional curriculum in optometry. The first and second years of the curriculum emphasize basic health sciences, optics and visual science and students are introduced to clinical practice in simulation laboratories, didactic courses and clinical experiences. Visual consequences of disease are introduced in the second year. The third year, divided between a didactic and clinical setting, emphasizes the diagnosis and treatment of ocular dysfunction and disease. The fourth year consists of intensive clinical training that includes both on campus and off campus clinical rotations. Clinical settings for external rotations may include military facilities, Veterans Administration hospitals, public health service hospitals, and specialty and/or private practices or clinics.