When looking straight ahead, there is a very slight downbeating nystagmus. When looking to the right (11 seconds), a clear downwardly-beating nystagmus can be seen. The same is true when looking to the left (24 seconds) with a mainly downwardly-beating nystagmus. Looking upward (35 seconds) does not induce a nystagmus. Looking downward (46 seconds) does also not induce a prominent nystagmus.
When the patient looks straight ahead, no clear nystagmus can be seen. When the patient looks to the left, a prominent downwardly-beating nystagmus is detected (4 seconds onwards). Looking to the right also induces a diagonally downwardly-beating nystagmus (14 seconds onwards). Looking upward does not induce nystagmus (25 seconds). Looking downward (35 seconds) only shows a slight vertical gaze-evoked nystagmus beating upward.