Optic nerve sheath fenestration: a revised lateral approach for nerve access

Nathan W. Blessing, David T. Tse

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Idiopathic intracranial hypertension (IIH), also known as pseudotumor cerebri, describes a disease of poorly understood pathophysiology with a specific set of signs and symptoms including potentially irreversible and blinding visual loss. Optic nerve sheath fenestration (ONSF) is a well-described surgical treatment for patients with IIH and progressive visual loss despite maximally tolerated medical therapy. A number of optic nerve access procedures have been described including medial transconjunctival, superomedial lid crease, and lateral orbitotomy with and without bone takedown. The purpose of this report is to describe a revised lateral approach for temporal optic nerve access that obviates the need to traverse through the intraconal fat of the central surgical space in the previously described lateral approach techniques.

Original languageEnglish (US)
Pages (from-to)137-143
Number of pages7
JournalOrbit (London)
Issue number2
StatePublished - Mar 4 2019


  • Idiopathic intracranial hypertension
  • lateral orbitotomy
  • optic nerve sheath fenestration
  • pseudotumor cerebri

ASJC Scopus subject areas

  • Ophthalmology


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