Stroboscopic Training Eyewear (IMAGE) Duke University Caption Carolina Hurricanes trainer Peter Friesen (left) watches as NHL goalie Justin Peters performs a drill with a tennis ball while wearing stroboscopic training eyewear. Credit Courtesy of Peter Friesen, @NHLCanes Usage Restrictions None 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.