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[Optic nerve head avulsion: a case report].

E Denion1, P-H Dalens, J Petitbon

  • 1Centre hospitalier Andrée Rosemon, Cayenne. edenion@wanadoo.fr

Journal Francais D'Ophtalmologie
|November 6, 2007
PubMed
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Optic nerve head avulsion, a rare rupture of optic nerve fibers, can occur after globe contusion. This case highlights a traumatic avulsion with no visual recovery despite treatment.

Area of Science:

  • Ophthalmology
  • Trauma Surgery
  • Neuroscience

Background:

  • Optic nerve head avulsion is a rare but severe condition involving rupture of nerve fibers at the lamina cribrosa.
  • It is characterized by the retraction of these fibers into the intact optic sheath, leading to significant vision loss.

Observation:

  • A case of optic nerve head avulsion following a globe contusion is presented.
  • The injury mechanism involved sudden forced globe rotation, acute proptosis, and a rapid increase in intraocular pressure.
  • Examination revealed a crater in the optic nerve head region, despite intraocular hemorrhages.

Findings:

  • Initial visual acuity was no light perception.
  • Computed tomography (CT) ruled out associated orbital bone fractures.

Related Experiment Videos

  • The patient received antibiotic and corticosteroid eyedrops, along with atropine and systemic antibiotics.

    • Implications:

    • This case underscores the severe visual consequences of traumatic optic nerve head avulsion.
    • Prompt diagnosis and management are crucial, although visual recovery may be limited.
    • Further research into preventative measures and novel treatments for traumatic optic neuropathies is warranted.