title: Late hyperbaric oxygen treatment of cilioretinal artery occlusion with nonischemic central retinal vein occlusion secondary to high altitude.
abstract: OBJECTIVE
  To report a case of cilioretinal artery occlusion (CRAO) with central retinal vein occlusion (CRVO) after a journey to high altitude region and the use of late period hyperbaric oxygen (HBO) therapy successfully.
  
  
  METHODS
  A previously healthy 48-year-old lowlander woman was admitted to our department for sudden blurred vision in her right eye started at 2 weeks prior to examination. The patient had a history of 1-month exposure to high altitude that finished a day before the onset of her complaints. The best corrected visual acuity (BCVA) was 10/20 in the right eye (RE) and 10/10 in the left eye. Fundus examination of the RE revealed whitening of the retina along the distribution of cilioretinal artery, sparing fovea, flame-shaped hemorrhages, and roth spots with minimally dilated and tortuous retinal veins. Visual field analysis revealed centrocecal scotoma. The patient was treated by a daily session of 2 h of HBO at 2.5 atmosphere absolute for 11 days. BCVA rised to a level of 20/20 for the RE and the scotomas were disappeared immediately after using of the HBO treatment.
  
  
  CONCLUSIONS
  CRVO related CRAO should be regarded as a rare complication of exposure to high altitude and HBO seems to be the treatment of choice of high altitude related co-occurence of CRVO and CRAO in the late period.
authors.affiliation: 1 Department of Ophthalmology, Sarikamis Military Hospital , Kars, Turkey .
authors.forename: Gokcen
authors.initials: G
authors.lastname: Gokce
authors.forename: Suleyman
authors.initials: S
authors.lastname: Metin
authors.forename: Uzeyir
authors.initials: U
authors.lastname: Erdem
authors.forename: Gungor
authors.initials: G
authors.lastname: Sobaci
authors.forename: Ali Hakan
authors.initials: AH
authors.lastname: Durukan
authors.forename: Halil Huseyin
authors.initials: HH
authors.lastname: Cagatay
authors.forename: Metin
authors.initials: M
authors.lastname: Ekinci
mesh_terms: D000531:Altitude; D005260:Female; D006801:Humans; D006931:Hyperbaric Oxygenation; D008875:Middle Aged; D015356:Retinal Artery Occlusion / Q000209:etiology / Q000628:therapy*; D012170:Retinal Vein Occlusion / Q000209:etiology / Q000628:therapy*