Joseph Markoff founded Philadelphia Eye Associates in 1978 after completing his Residency at the Wills Eye Hospital. Dr. Markoff received his undergraduate degree from Oberlin College where currently he serves as a trustee. He received a Ph.D. in Physiological Psychology from Syracuse University and an M.D. from the University of Minnesota in Minneapolis.

Dr. Markoff directs the visual physiology service at Wills Eye Hospital. At Wills he holds the rank of Attending Surgeon and is a Clinical Professor at Thomas Jefferson University School of Medicine. He lectures nationally and internationally on cataract surgery, glaucoma, retinal disease and basic physiology of the eye. He has published and presented more than on hundred fifty scientific papers. He served as an associate examiner for the American Board of Ophthalmology. He has been chief of ophthalmology at the Albert Einstein and St. Agnes Medical Centers. He serves on the U.S. Glaucoma Advisory Board for the Pharmacia Corporation and is the grants officer for the International Retinal Research Foundation. In January of this year he was named in Consumer Research Council 's guide to "America's Top Ophthalmologists".

Dr. Markoff is also a professional trumpet player having performed with the orchestras of Syracuse, Minnesota, St. Paul and Philadelphia. He has also done research into the acoustics of musical instruments. A New York Times article about this work appeared in its Science Section on November 2, 1999.