Condition

Nystagmus

Also known as Dancing Eyes, Involuntary Eye Movements, Eye Shaking, Infantile Nystagmus, Acquired Nystagmus

Updated May 16, 2026For educational purposes only. Not a substitute for medical advice. See our terms.

Bottom Line

Nystagmus means the eyes move back and forth without control. It can be present from infancy, but new nystagmus with dizziness, double vision, weakness, or trouble walking needs urgent care.

Nystagmus is an involuntary, repeating eye movement. The movement can be side to side, up and down, circular, or mixed 1.

Some people have infantile nystagmus that starts in early life. Others develop nystagmus later from inner ear disease, medicines, alcohol, stroke, multiple sclerosis, brain injury, or eye disease 2.

Treatment depends on the cause. Glasses, contact lenses, vision therapy tools, medicine, or eye muscle surgery may help selected people 3.

Types and Causes

Infantile nystagmus starts early in life. It is often stable and may run in families.

Acquired nystagmus starts later. Possible causes include inner ear disorders, medicine side effects, alcohol, stroke, multiple sclerosis, tumors, trauma, and vitamin deficiency 2.

Testing

The doctor checks vision, eye alignment, eye movement direction, pupils, retina, optic nerves, balance symptoms, and medicines.

Some patients need imaging, blood tests, genetic testing, hearing testing, or a neurology exam. New symptoms need faster testing than lifelong stable symptoms.

Treatment

Treatment starts with the cause. Glasses or contact lenses may sharpen vision. Low-vision tools can help reading and school work.

Some medicines help certain acquired forms. Eye muscle surgery can reduce a strong head turn or improve the best gaze position in selected patients 3.

Common Questions About Nystagmus

Nystagmus is not considered normal, but some babies have a stable infantile form. They still need a pediatric eye exam.

Next Steps

  1. 1Call 911 for sudden nystagmus with weakness, face droop, trouble speaking, severe dizziness, or trouble walking.
  2. 2Go to the emergency room after head injury or sudden vision loss.
  3. 3Book a pediatric eye exam if a baby or child has repeating eye movements.
  4. 4Bring a medicine list and a short symptom video to the visit.
  5. 5Ask whether neuro-ophthalmology, pediatric ophthalmology, or neurology should be involved.

Find specialists for Nystagmus

Board-certified ophthalmologists who treat Nystagmus.