Dr. Kahrhoff has taught at the University of Missouri College of Optometry in the areas of systemic and ocular pharmacology, ocular anatomy and physiology, physiological optics, and problem-based clinical analysis. He has developed contact lens education programs for Air Force optometrists and ophthalmologists and lectured military physicians on evaluation of eye trauma.
Dr. Kahrhoff is a lead author and inventor on multiple patent applications filed with the US Patent Office for innovations in ocular drug delivery and regenerative ocular medicine. Dr. Kahrhoff was among the first optometrists to provide platelet rich plasma therapy to patients with dry eye diseases. He is a co-inventor of "The Electronic Eyelid," a prosthetic blinking device designed for a child who had lost his ability to blink due a brain tumor and "The Freedom Reader," a low vision aid that converted printed text to speech. Dr. Kahrhoff is also the creator of the A.M.P. System for visual neurocognitive training and to enhance visual performance for learning, sports and visual rehabilitation.
While not seeing patients, he enjoys spending time with his wife and twin daughters.