IndyCar Adds Eye-Tracking System to Concussion Test Protocol

With the I-PAS system, a driver wears goggles that are connected to a computer. The tester is able to track "eyeballs, the whites of their eyes, the pupils, the iris and so on. So you can see the eye muscles contract, get bigger and smaller," Trammell said. "Think of going to the doctor, he said, 'Follow my finger back and forth, follow it into your nose, back out of your nose.' This does that, but it does it optically. It measures the changes in your eye very accurately, to infinitesimal small degrees."