When the puck flies at more than 100 miles (175km/h) an hour, it’s virtually impossible for a coach to know where their players are looking. This limitation makes it difficult to improve performance and understand the role of reflex actions on the rink. Now thanks to the eye-tracking technology in Tobii Pro Glasses 2, these subconscious behaviors can be recorded in real time and used to fine tune player’s performance. Watch below, to see how one Swedish team is using this revolutionary product to improve their game.