David R. Hardten, MD is a cornea, refractive, and anterior surgery subspecialist in Minnesota. He teaches at many national and international meetings, and he highly values his involvement in resident and fellow teaching. He has served in leadership positions in many national ophthalmology organizations. Mark S. Hansen, MD is an anterior segment surgeon at Minnesota Eye Consultants. He is the fellowship director of the cornea and glaucoma fellowship program and enjoys teaching. He also participates in international ophthalmology trips and works to train local residents and surgeons in Central America. He is on the board of directors for a nonprofit organization, Central American Eye Clinics. Celine E. Satija, MD is a clinical cornea fellow at Tufts University New England Eye Center and Ophthalmic Consultants of Boston. She graduated from Princeton University with her undergraduate degree, after which she attended Tulane University School of Medicine. She completed her ophthalmology residency at the University of Minnesota.