Stand in front of patient and have them follow the object. Make sure to tell them to only follow with their eyes. One of the patterns is the H pattern (Start neutral, go left, go up, go back to the middle, go left, go down, go back to the middle, go left, go back to neutral, do right side). Or the Wheel pattern (Start neutral and go out in each direction, returning to neutral every time. Pause at each area so you can watch their eyes at each of these positions).