Dr. Johnson graduated Magna Cum Laude from Haverford College and received his Doctor of Medicine degree from the University of Pennsylvania Perelman School of Medicine where he received an award for outstanding medical student research. Dr. Johnson completed his internship in General Surgery at the Hospital of the University of Pennsylvania. He performed his ophthalmology residency at the Wills Eye Institute at Thomas Jefferson University. Dr. Johnson completed his two-year vitreoretinal surgery fellowship at Emory University.