What are the signs and symptoms of nystagmus?

Nystagmus is uncontrolled jerky eye movements. Nystagmus is most often side to side (horizontal nystagmus), but it can also be up and down (vertical nystagmus) or circular (rotary nystagmus). People with nystagmus might have a sense that stationary objects are moving. Horizontal nystagmus is usually due to a problem in the balance system of the inner ear and is typically associated with dizziness, vertigo and imbalance.