title: Changes in choroidal thickness in patients with obstructive sleep apnea syndrome.
abstract: OBJECTIVE
  To evaluate choroidal thickness using spectral-domain optical coherence tomography (SD-OCT) in patients with obstructive sleep apnea syndrome (OSAS) in comparison to healthy controls.
  
  
  METHODS
  This observational, comparative study consisted of 35 patients with OSAS and 32 age- and sex-matched controls. The controls did not have systemic or ocular diseases. All study participants underwent complete ophthalmic examination as well as choroidal thickness measurement using a high-speed, high-resolution SD-OCT device.
  
  
  RESULTS
  The mean horizontal and vertical choroidal thicknesses, respectively, were 237.84 ± 69.9 μm and 234.97 ± 62.0 μm (P = .654) in patients with OSAS and 244.09 ± 41.2 μm and 241.88 ± 40.9 μm (P = .590) in the healthy controls. The mean choroidal thicknesses were thinner in patients with OSAS, but the difference was not significant (P > .05 for all values).
  
  
  CONCLUSIONS
  No differences in choroidal thickness were found between patients with OSAS and healthy controls.
authors: Mehmet Özgür
authors: MÖ
authors: Zengin
authors: Tolga
authors: T
authors: Öz
authors: Ayşegül
authors: A
authors: Baysak
authors: Esat
authors: E
authors: Çinar
authors: Cem
authors: C
authors: Küçükerdönmez
mesh_terms: D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D016022:Case-Control Studies; D002829:Choroid / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017286:Polysomnography; D020181:Sleep Apnea, Obstructive / Q000473:pathology*; D041623:Tomography, Optical Coherence / Q000379:methods