Dr. Sonsino studied at the New England College of Optometry in Boston, where he graduated with research honors. He had the opportunity to spend time at and complete a research poster at the Massachusetts Eye and Ear Infirmary, Harvard Medical School. Afterward, he completed a highly competitive one-year residency in cornea and contact lenses at Illinois College of Optometry. In Chicago, he worked mainly with the optometrist and ophthalmologists at the prestigious, University of Chicago Medical Center seeing patients with severe corneal diseases. One highlight of his experience there was super-gluing a patient’s cornea closed to save his vision.