CN II - Nystagmus

Nystagmus  causes the eyes to look involuntarily from side to side in a rapid, swinging motion rather than staying fixed on an object or person. Due to the involuntary movement of the eye, it is often called "dancing eyes". Signal from the brain is relayed to the extraocular muscles to allow one’s gaze to fixate on one object as the head moves. Nystagmus occurs when the semicircular canals of the inner ear are being stimulated while the head is not in motion. In this activity, horizontal nystagmus and vertical nystagmus are simulated.




Simulation Type

Condition, Using animation.

Gender Specific

No, Common for both gender

Conditions Simulated


     Vertical Nystagmus

     Horizontal Nystagmus


     Click ‘Start’ button to start the examination.

     Examine the eye movement.

     Click ‘Reset’ button to repeat the test.