Dr. Ho had the pleasure of presenting “My Approach to using Heart Rate Variability for Syntonic Phototherapy Assessment in a Highly Symptomatic TBI Patient” at the annual College of Optometrist in Vision Development (COVD) meeting in Toronto last month. Heart Rate Variability Heart rate variability (HRV) is the fluctuation of time intervals between heartbeat that… Continue reading Heart Rate Variability and Syntonic Phototherapy