title: Cavernous-dural fistula with secondary angle-closure glaucoma.
abstract: OBJECTIVE
  To report a rare case of angle-closure glaucoma, secondary to the rapid development of a choroidal effusion, in a patient with a long-standing cavernous-dural shunt.
  
  
  METHODS
  Case report. Investigations included computed tomographic scan, magnetic resonance imaging, and carotid angiography.
  
  
  RESULTS
  The development of the choroidal effusion occurred because of partial thrombosis of the ipsilateral superior ophthalmic vein and cavernous sinus. Drainage of the choroidal effusion resolved the angle-closure glaucoma.
  
  
  CONCLUSIONS
  The combination of worsening signs and evidence of thrombosis indicates impending resolution of a cavernous-dural shunt. However, if a choroidal effusion causes angle-closure glaucoma, prompt surgical drainage should be considered to prevent permanent peripheral anterior synechiae formation, with the expectation that the effusion will not recur.
authors.affiliation: Oxford Eye Hospital, Radcliffe Infirmary, UK.
authors.forename: S J
authors.initials: SJ
authors.lastname: Talks
authors.forename: J F
authors.initials: JF
authors.lastname: Salmon
authors.forename: J S
authors.initials: JS
authors.lastname: Elston
authors.forename: A J
authors.initials: AJ
authors.lastname: Bron
mesh_terms: D000368:Aged; D002426:Cavernous Sinus / Q000000981:diagnostic imaging / Q000473:pathology; D002533:Cerebral Angiography; D015862:Choroid Diseases / Q000150:complications / Q000601:surgery; D004388:Dura Mater / Q000000981:diagnostic imaging / Q000473:pathology; D005122:Exudates and Transudates; D005123:Eye / Q000098:blood supply; D005402:Fistula / Q000150:complications* / Q000175:diagnosis; D015812:Glaucoma, Angle-Closure / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D007429:Intraocular Pressure; D008279:Magnetic Resonance Imaging; D008297:Male; D012851:Sinus Thrombosis, Intracranial / Q000150:complications / Q000175:diagnosis; D013396:Suction / Q000379:methods; D013924:Thrombophlebitis / Q000150:complications / Q000175:diagnosis; D014057:Tomography, X-Ray Computed