Idiopathic intracranial hypertension (IIH) is a condition of increased intracranial pressure of unknown cause. It can have the devastating effect of permanent vision loss seen in 25% of patients from secondary optic neuropathy if patients are not treated in a timely and appropriate manner.
The neuro-ophthalmic findings in idiopathic intracranial hypertension patients are mainly visual loss and papilledema. Papilledema is caused by increased ICP and is a cardinal sign of IIH. Although OCT is frequently used in clinical practice to evaluate thinning of the retinal nerve fiber layer (RNFL) due to optic nerve injury from a variety of causes, using OCT to quantify papilledema is relatively new. Evaluating OCT findings in IIH patients and comparing it with clinical and perimetric findings could be useful.
AIM OF THE WORK:
In this study we employed OCT to evaluate its value in detecting structural changes in the optic nerve head and the retina of patients with IIHto determine if it provides additional help to identify optic disc swelling and correlate the findings with clinical and perimetric evaluation.