Assertion: optic nerve sheath fenestration | /r/CapableOf | preserve vision
Facets:
value: in patients with progressive optic neuropathy
type: OTHER
value: due to papilledema
type: CAUSE
Source sentences:
text: Optic nerve sheath fenestration (ONSF) can be an effective surgical technique to preserve vision in patients with progressive optic neuropathy due to papilledema caused by idiopathic intracranial hypertension (IIH); however, a dreaded complication of ONSF is visual loss.