Optic nerve sheath fenestration

  • It is a surgical procedure in which slits are made in the optic nerve sheath to relieve the pressure on the optic nerve
  • It is done in cases of Idiopathic Intracranial Hypertension (pseudo tumor cerebri)

Procedure:

  • The orbit is entered into via a surgical incision in the skin
  • The eyeball is pushed to one side and the optic nerve is identified
  • Slits are made in the optic nerve sheath
  • The fluid drains out and the compression on the optic nerve is relieved

Uses:

  • Preservation of optic nerve function in cases of idiopathic intracranial hypertension not responding to medical therapy

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IIH – Acronym

Idiopathic Intracranial Hypertension (Pseudo tumor cerebri)

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