Allen surgery (IMAGE) University of California - San Diego Caption Richard (Todd) Allen, MD, PhD, (left) uses an augmented reality headset during a spine surgery at UC San Diego Health. Credit UC San Diego Health Sciences Usage Restrictions Use photo credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.