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Br J Ophthalmol 2003;87:249 doi:10.1136/bjo.87.2.249
  • Letter

Optic neuritis with marked distension of the optic nerve sheath due to local fluid congestion

  1. H E Killer1,
  2. A Mironov1,
  3. J Flammer2
  1. 1Department of Ophthalmology and Radiology, Kantonsspital Aarau, Switzerland
  2. 2University Eye Clinic, Basel, Switzerland
  1. Correspondence to: H E Killer, MD, Augenklinik, Kantonsspital Aarau, Aarau, Switzerland; Killer{at}KSA.ch
  • Accepted 9 August 2002

Distension of the subarachnoid space of the optic nerve is not a common feature of optic neuritis. We describe a patient with optic neuritis with swelling of the optic nerve head of the right eye. On magnetic resonance imaging (MRI) there was marked distension of the optic nerve sheath due to an increase of fluid in the subarachnoid space. The location of the lesion in the optic nerve and concurrent inflammatory changes of the arachnoid trabecula and septae may have had a role in the pathophysiology of this condition.

Case report

A 38 year old man was admitted with pain on eye movements and loss of vision in the right eye. Best corrected visual acuities measured 20/40 on the right and 20/20 on the left. The patient identified 16 out of 18 Ishihara plates with the right eye and …

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