She is presently an Adjunct Clinical Professor of Ophthalmology at Tulane University School of Medicine in New Orleans and a Clinical Professor of Ophthalmology at New York University (NYU) in Manhatten.
Dr McDonald received her medical degree from Columbia University College of Physicians and Surgeons followed by an internship at Lennox Hill Hospital and ophthalmology residency at Manhatten Eye Ear and Throat Hospital/Cornell, both in New York City. She completed a fellowship in corneal and external diseases at the LSU Eye Center in New Orleans. She has become well known in the field of refractive surgery with 477 abstracts, 79 books and book chapters and 179 peer reviewed and 280 non peer reviewed articles published on various refractive topics. In New Orleans Dr McDonald headed the research team investigating the use of the excimer laser for the correction of optical error and in 1988 performed the world's first excimer laser treatment to eliminate or reduce the need for glasses and contact lenses.