Dr. Harlyne Knight-Hantman is an independent optometrist with a specialty in low vision and diplopia/double vision. A graduate of Illinois College of Optometry, Dr. Hantman completed an externship in low vision and was then appointed to the clinical staff at the New York Lighthouse. She was also an associate in the office of Charles Kelman, MD, considered the father of modern cataract surgery. Dr. Hantman relocated to south Florida and has practiced in Boca Raton for over forty years. She has lectured to the profession as well as the public in the United States as well as internationally.