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Nystagmus (Involuntary Eye Movement)

Repetitive involuntary eye oscillations that may be congenital or acquired and require systematic evaluation to identify underlying cause.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Göz Hastalıkları department. Book Appointment →

What is Nystagmus (Involuntary Eye Movement)?

Nystagmus is classified by waveform (jerk vs pendular), direction (horizontal, vertical, torsional, mixed), age of onset (congenital/infantile vs acquired) and characteristics (gaze-holding, fixation, peripheral). Infantile nystagmus syndrome (INS) typically presents in the first 6 months with horizontal conjugate jerk waveform and a null point of best vision.

Sensory nystagmus results from early bilateral visual deprivation (congenital cataract, optic nerve hypoplasia, ocular albinism, achromatopsia, Leber congenital amaurosis). Motor nystagmus has no identifiable visual abnormality and represents a primary disorder of the ocular motor system. Latent nystagmus appears with monocular fixation and is associated with infantile esotropia.

Acquired nystagmus is more concerning as it often indicates serious underlying pathology: brainstem or cerebellar lesions (stroke, multiple sclerosis, tumor), drug toxicity (anticonvulsants, lithium), thiamine deficiency or vestibular disease. Specific patterns help localize lesions: downbeat (cervicomedullary junction), upbeat (medulla), seesaw (parasellar). Treatment depends on cause and may include optical correction, prisms, gabapentin, memantine, botulinum toxin or surgery.

Symptoms

Involuntary repetitive eye movements
Reduced visual acuity (variable severity)
Head tilt or face turn (null point posture)
Oscillopsia (illusory motion of environment) — acquired type
Photophobia (sensitivity to light)
Difficulty focusing on stationary objects
Reading difficulty and slower reading speed
Associated strabismus or refractive errors

Risk Factors

Family history of nystagmus
Albinism (oculocutaneous or ocular)
Congenital cataract or optic nerve disorders
Achromatopsia and other retinal dystrophies
Premature birth and perinatal complications
Down syndrome and other genetic conditions
Multiple sclerosis and other demyelinating diseases
Brainstem or cerebellar disease

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • New-onset nystagmus at any age
  • Infant with abnormal eye movements
  • Persistent head tilt or face turn
  • Sudden onset nystagmus with vertigo or imbalance
  • Adult-onset nystagmus — urgent neurological evaluation
  • Failed vision screening with eye movement abnormality
  • Family history with abnormal exam
  • Acute oscillopsia or visual deterioration

Treatment Methods

01
Comprehensive ophthalmologic and neurological evaluation
02
Electroretinography and visual evoked potentials
03
Neuroimaging (MRI brain) for acquired nystagmus
04
Refractive correction with glasses or contact lenses
05
Prism therapy to shift null point to primary gaze
06
Pharmacotherapy (gabapentin, memantine, baclofen)
07
Botulinum toxin injection in selected cases
08
Anderson-Kestenbaum surgery to move null point

Which Department to Visit?

You can visit our Göz Hastalıkları department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Göz Hastalıkları Department

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.