Thanks for this question! Remember – nystagmus is named for the FAST phase relative to the patient. In this case, the fast beat is actually toward the nose (since it is the left eye, the fast phase is to the right). Watch the video again and see if you can pick up on it. At the 6-second mark, you will see horizontal nystagmus with a fast phase going to the patient’s right. We are looking at the patient’s eyes, so the viewer will see nystagmus beating across our screen to the left, which is the patient’s right.
Chrissy