Virtual reality could spot eye nerve damage earlier than flashlight test

This study tested whether a virtual reality headset combined with machine learning can measure pupil reactions more reliably than the standard flashlight test for Relative Afferent Pupillary Defect (RAPD). About 71 adults with and without known RAPD took part. Researchers compared manual measurements with those from the VR system to see if the new method could detect RAPD earlier or more objectively.