Involuntary rhythmic eye movements
Nystagmus Evaluation and Treatment in Los Angeles
Involuntary, rhythmic eye movements — called nystagmus — can cause blurred vision, difficulty focusing, and a sensation of the world moving. Whether present since childhood or newly acquired, a neuro-ophthalmic evaluation is important to identify the cause and explore treatment options. Our Los Angeles practice specializes in nystagmus diagnosis and management.
What is Nystagmus?
Nystagmus is involuntary, repetitive movement of the eyes. It can be congenital (infantile nystagmus syndrome, present from early life) or acquired (developing later due to a neurological or inner ear condition). Congenital nystagmus is often associated with reduced vision from birth but is generally stable and not dangerous. Acquired nystagmus, however, can be a sign of a serious neurological condition such as stroke, multiple sclerosis, brain tumor, or medication toxicity, and requires prompt evaluation. The pattern, direction, and characteristics of the nystagmus provide important clues to the underlying cause.
Symptoms of Nystagmus
- Involuntary shaking or oscillation of the eyes
- Blurred vision or difficulty maintaining focus
- Oscillopsia — a sensation that the world is bobbing or moving
- Head tilting or turning to find a "null point" where nystagmus is minimized
- Difficulty with reading and fine visual tasks
- Dizziness or imbalance (especially with acquired nystagmus)
- May be noticed by others before the patient is aware
Common Causes of Nystagmus
- Infantile (congenital) nystagmus syndrome — present from birth, often benign
- Sensory deprivation nystagmus — from early childhood vision loss (albinism, cataracts, optic nerve hypoplasia)
- Multiple sclerosis
- Stroke or cerebellar disease
- Brain tumors affecting the cerebellum or brainstem
- Vestibular disorders (inner ear conditions)
- Medication toxicity (anti-seizure medications, lithium, sedatives)
- Nutritional deficiencies (thiamine / Wernicke encephalopathy)
- Arnold-Chiari malformation
How We Evaluate Nystagmus
Evaluation includes a detailed examination of the nystagmus characteristics — direction (horizontal, vertical, torsional), waveform (jerk vs. pendular), and whether it changes with gaze direction or fixation. Video-oculography may be used to record and analyze the eye movements precisely. A complete neuro-ophthalmic examination evaluates visual acuity, optic nerve function, and eye alignment. MRI of the brain is typically obtained for acquired nystagmus to evaluate the brainstem, cerebellum, and vestibular structures. Blood work may screen for medications, nutritional deficiencies, or other systemic causes.
Treatment Options
Treatment depends on the type and cause of nystagmus. For acquired nystagmus, treating the underlying condition is the priority. Medications such as gabapentin, memantine, or baclofen can reduce nystagmus intensity in some patients. For congenital nystagmus, surgery (Anderson-Kestenbaum procedure) can shift the null point to a more comfortable head position, reducing the head turn. Optical aids including contact lenses (which can dampen nystagmus) and prism glasses may improve visual function.
- Treatment of the underlying cause (MS treatment, tumor removal, medication adjustment)
- Optical correction — contact lenses or glasses with prisms
- Medications to reduce nystagmus (gabapentin, memantine, baclofen, 4-aminopyridine)
- Strabismus surgery to move the "null point" to a more comfortable position
- Low-vision aids for patients with reduced acuity
- Vestibular rehabilitation for vestibular-related nystagmus
Why Choose Dr. Ghiam for Nystagmus
- Neuro-ophthalmologist with expertise in eye movement disorders
- Ability to distinguish benign congenital nystagmus from acquired, neurologically significant forms
- Advanced eye movement analysis for accurate characterization
- Medication management to reduce nystagmus when possible
- Surgical expertise for nystagmus-related strabismus and null point optimization
Nystagmus evaluation requires expertise in eye movement disorders — a core component of neuro-ophthalmology training. A neuro-ophthalmologist can distinguish the many types of nystagmus, determine whether the cause is benign or dangerous, guide the neurological workup, and offer both medical and surgical treatment options.
Get Expert Help for Nystagmus
If you or your child has involuntary eye movements or has been told you have nystagmus, a neuro-ophthalmic evaluation can determine the cause and explore treatment options. Contact our Los Angeles office today.