title: Management of diplopia secondary to neurosurgical injury of the orbital roof.
abstract: BACKGROUND
  Diplopia related to neurosurgical procedures is often consecutive to oculomotor nerve lesions. We hereby report an oculomotor dysfunction secondary to an orbital roof effraction and its treatment.
  
  
  METHODS
  Following surgery for a left anterior communicating artery aneurysm, a 45-year-old woman reported vertical diplopia associated with a left orbital hematoma. The diagnosis of third cranial nerve palsy was excluded by orbital imaging which revealed an orbital roof defect with incarceration of the levator palpebrae and superior rectus.
  
  
  RESULTS
  As neurosurgeons advised against muscle adhesiolysis, diplopia was corrected by a two-step procedure on the oculomotor muscles. We first corrected horizontal and torsional deviations by operating on the healthy eye, before correcting the vertical deviation on the fellow eye. This two-step extraocular muscle surgery allowed restoration of binocular single vision in a useful field of gaze.
  
  
  CONCLUSIONS
  Diplopia can occur as a rare orbital complication during neurosurgical procedures. Surgery of extraocular muscles can provide good functional results.
authors.affiliation: Jules Gonin Eye Hospital, Lausanne, Switzerland.
authors.forename: P-F
authors.initials: PF
authors.lastname: Kaeser
authors.forename: G
authors.initials: G
authors.lastname: Klainguti
mesh_terms: D004172:Diplopia / Q000209:etiology* / Q000601:surgery*; D005260:Female; D006801:Humans; D008875:Middle Aged; D019635:Neurosurgical Procedures / Q000009:adverse effects*; D009915:Orbit / Q000601:surgery*