Idiopathic intracranial hypertension
Idiopathic Intracranial Hypertension (IIH) Treatment in Los Angeles
Severe headaches, vision changes, and a whooshing sound in your ears can be signs of dangerously elevated pressure around your brain. Idiopathic intracranial hypertension (IIH) requires expert monitoring to prevent permanent vision loss. Our Los Angeles neuro-ophthalmology practice specializes in diagnosing and managing this condition.
What is IIH / Pseudotumor Cerebri?
Idiopathic intracranial hypertension (IIH), formerly known as pseudotumor cerebri, is a condition in which the pressure of the cerebrospinal fluid (CSF) inside the skull is elevated without an identifiable cause such as a tumor. It most commonly affects women of childbearing age, particularly those who are overweight. Left untreated, IIH can lead to permanent vision loss due to damage to the optic nerves from chronic elevated pressure. Early detection and ongoing monitoring by a neuro-ophthalmologist are essential to preserving vision.
Symptoms of IIH / Pseudotumor Cerebri
- Severe daily headaches, often worse in the morning or when lying down
- Brief episodes of dimming or graying of vision lasting seconds (transient visual obscurations)
- Whooshing sound in the ears that matches the heartbeat (pulsatile tinnitus)
- Double vision from sixth cranial nerve palsy
- Neck and shoulder pain
- Progressive peripheral vision loss if untreated
- Blurred vision or difficulty focusing
Common Causes of IIH / Pseudotumor Cerebri
- Obesity and recent weight gain (the strongest risk factor)
- Certain medications (tetracycline antibiotics, vitamin A derivatives, growth hormone)
- Hormonal factors — predominantly affects women of childbearing age
- Venous sinus stenosis (narrowing of the brain's venous drainage)
- Sleep apnea (associated condition)
- Idiopathic — by definition, no structural cause is identified
How We Evaluate IIH / Pseudotumor Cerebri
Evaluation includes a comprehensive eye examination with dilated fundoscopy to look for papilledema (swelling of the optic disc). Visual field testing documents any peripheral vision loss. An MRI of the brain with MR venography rules out structural causes and venous sinus thrombosis. A lumbar puncture (spinal tap) measures the opening pressure of the CSF — an elevated opening pressure above 25 cm H2O, with normal CSF composition, confirms the diagnosis. Optical coherence tomography (OCT) helps track optic nerve changes over time.
Treatment Options
Treatment focuses on protecting vision and reducing intracranial pressure. Weight loss is the most effective long-term treatment — even a 5-10% reduction in body weight can significantly improve symptoms. Acetazolamide (Diamox) is the first-line medication. In severe or rapidly progressing cases, surgical options include optic nerve sheath fenestration or CSF shunting procedures. Regular monitoring of visual fields and optic nerve health is essential.
- Weight loss — the most effective long-term treatment
- Acetazolamide (Diamox) to reduce cerebrospinal fluid production
- Topiramate as an alternative medication with weight-loss benefits
- Optic nerve sheath fenestration for rapidly progressive vision loss
- CSF shunting procedures (VP or LP shunt) for refractory cases
- Venous sinus stenting in selected patients with venous stenosis
- Regular visual field and OCT monitoring
Why Choose Dr. Ghiam for IIH / Pseudotumor Cerebri
- Fellowship-trained neuro-ophthalmologist with extensive IIH management experience
- Expert monitoring of papilledema and visual fields to prevent vision loss
- Ability to determine when conservative management is sufficient vs. when surgery is needed
- Coordination with neurosurgery and interventional neuroradiology when necessary
- Thorough, individualized treatment plans
IIH is a condition where the primary threat is vision loss, making the neuro-ophthalmologist central to care. We monitor the optic nerves for papilledema, track visual field changes over time, and determine when conservative management is sufficient versus when surgical intervention is needed to prevent irreversible optic nerve damage.
Get Expert Help for IIH / Pseudotumor Cerebri
If you are experiencing severe headaches with vision changes, don't wait. Early evaluation by a neuro-ophthalmologist can prevent permanent vision loss. Contact our Encino office today.