Dennis M. Robertson MD, emeritus consultant from the Department of Ophthalmology, Mayo Clinic, completed his undergraduate and graduate training at the University of Minnesota where he received a BA, BS, and MD. Following an internship at San Bernardino County Hospital in California, he worked for two years on Indian reservations under the umbrella of the United States Public Health Service. He later completed a residency in Ophthalmology at the Mayo Clinic and pursued postgraduate fellowship training in vitreoretinal disorders at the Bascom Palmer Eye Institute in Miami, Florida. He returned to the Mayo Clinic in Rochester, Minnesota where he was a consultant for 39 years. His studies included a sabbatical during 1987 and 1988 at Moorfields and St. Bartholomew’s Hospitals in London, England where the furthered his studies in retinovitreous disorders and ocular cancer. Scientific research interests were chiefly in disorders of the retina and vitreous and ocular oncology. In 1999 he became the recipient of the Whitney and Betty MacMillan Professorship. He has published more than 150 papers in peer-reviewed scientific journals His interests outside of Ophthalmology include music (he has been a banjo-playing member of a Dixieland band for the past 50 plus years, astronomy, traveling, ballroom dancing, sailing, and hiking and exploring Arizona and the Southwest. For the past 15 years, he and his wife have spent their winters in Fountain Hills, Arizona.