Jeffrey N. Weiss, M.D. is the former Chief of Retinal Surgery at the Joslin Diabetes Center in Boston, Faculty, Harvard Medical School and Visiting Scientist, Massachusetts Institute of Technology. He performed the first retinal stem cell surgery in 2010 and is the Principal Investigator of the Stem Cell Ophthalmology Treatment Studies (SCOTS), the Neurologic Stem Cell Treatment Study (NEST), and the Stem Cell Spinal Cord Injury Exoskeleton and Virtual Reality Treatment Study (SciExVR).