While on a family vacation in Paris this summer, 14-year-old Katie Rothstein fell off a Segway, hitting her head. She felt dizzy at first, but she seemed to recover quickly. Plus, she was wearing a helmet. Her parents thought she was fine.
Almost three weeks later, her mother, Adrienne Rothstein, brought Katie in as a volunteer to help her friend's company, RightEye, test its new eye-tracking software, Neuro Vision.
One of the tests Neuro Vision can perform is smooth pursuit. It works like a doctor does when a patient is asked to follow, or track, the doctor's finger. In that test, the doctor watches the patient's eyes to see if they are following the movement smoothly. However, Neuro Vision's measurement is more precise in gauging how well — or how poorly — the patient's eyes are tracking.