optic nerve sheath fenestration


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op·tic nerve sheath fen·es·tra·tion

the cutting of a window in the dura of the optic nerve sheath to relieve papilledema and prevent further loss of optic nerve fibers.
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Medical treatment includes Acetazolamide, Steroids, Topiramate, Frousemide and surgical treatment options include Optic Nerve Sheath Fenestration (ONSF) or CSF shunt (lumboperitoneal shunts, ventriculo-peritoneal shunts, or ventriculoatrial shunt).3,6,7
Controversies: Optic nerve sheath fenestration versus shunt placement for the treatment of idiopathic intracranial hypertension.
Optic nerve sheath fenestration in cryptococcal meningitis.
Benign intracranial hypertension: visual loss and optic nerve sheath fenestration. J Neurol Neurosurg Psychiatry.
Optic nerve sheath fenestration for pseudotumorcerebri.
Efficacy and safety of optic nerve sheath fenestration in patients with raised intracranial pressure
Subtenon's local anaesthesia for optic nerve sheath fenestration. Am J Ophthalmol 1996; 121: 326-7.
Anaesthesia in various anterior segment complications of sub-Tenon surgeries

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