vertical nystagmus

Etiology

• commonly congenital or acquired after prolonged periods of blindness
• central vertigo due to vertebrobasilar stroke*

* patients with cardiovascular risk factors

* especially with neurologic deficit, visual changes, or mental status changes

Clinical manifestations

• nystagmus in which the eye moves with equal speed in both directions

Radiology

• MRI of the brain if central vertigo supected

More general terms

• nystagmus