Dr. Ronald William Waynant, a pioneer in the field of medical laser applications, passed away on Saturday May 8th, 2016. Ron received his B.S. in Electrical Engineering from Johns Hopkins University, and M.S. and Ph.D. from Catholic University. For much of his early career, Ron worked at Westinghouse and the Naval Research Laboratory on the development and application of solid state ruby and neodymium lasers, and UV and vacuum UV gas lasers inventing novel laser pumping techniques. In 1986, he joined FDA where he focused on medical applications of lasers and fiber optics, and played a major role in the development of the field, until retiring from the Agency in 2011. Among his many accomplishments, Ron served as Editor-in-Chief of IEEE Circuits and Devices Magazine for over twenty years, as Primary Editor of IEEE Journal of Selected Topics of Quantum Electronics on Lasers in Medicine and Biology, and was the Editor of comprehensive books such as the “Electro-Optics Handbook” and “Electronic and Photonic Circuits and Devices”. He also served as an Adjunct Professor with the Uniformed Services University on the Health Sciences in Bethesda, MD and the Electrical Engineering Department at Catholic University. As a result of his distinguished contributions, Ron was named a Fellow of IEEE, The American Institute of Medical and Biological Engineers, The Optical Society of America, and The American Society for Laser Surgery and Medicine. Ron was a very creative and innovative scientist. His scientific work spans UV lasers, optical fibers for medical applications and Photobiomodulation Therapy. Along with multiple original developments and publications, he holds 13 patents. Ron was known for his relaxed character, good humor and was loved by his colleagues, students and friends.