Simple answer is none. Idiopathic Intracranial Hypertension is an increase in the intracranial pressure for no physiologic reason. The most common symptoms are headaches and vision loss such as blind spots, poor peripheral (side) vision, double vision, and short temporary episodes of blindness.Having a complete physical exam by a neurologist and/or a ophthalmologist is needed to determine if increased pressure is present and could result in those symptoms. A spinal tap (putting needle into the spinal canal at the base of your spine to test the spinal fluid pressure) is usually needed also to determine if the pressure is increased.
The disorder is most common in women between the ages of 20 and 50; about 5 percent of those affected are men. Weight loss is a critical part of treatment for people with IIH who are overweight and obese. Studies show that modest weight loss, around 5-10 percent of total body weight, may be sufficient to reduce signs and symptoms.
For many people, weight loss can be difficult to achieve and maintain. And for those who are able to lose weight, relief from IIH tends to be gradual. Acetazolamide (Diamox), a drug that decreases CSF production, is therefore often used as an add-on therapy to weight loss
Perry Solomon, MD