Optical coherence tomography imaging of the optic nerve head pre optic and post optic nerve sheath fenestration.

Idiopathic intracranial hypertension (IIH) is a disorder of unknown aetiology, and causes elevated intracranial pressures. This is often associated with papilloedema with subsequent degrees of optic atrophy if the intracranial pressures are not controlled in a timely manner. Optical coherence tomography imaging is widely recognised for its use in the monitoring of optic nerves in glaucoma, and this report is the first to describe its use to monitor the optic nerve head pre optic and post optic nerve sheath fenestration.