title: [The change of macular thickness of SAS before and after sleep].
abstract: OBJECTIVE
  To observe the changes of macular thickness in patients with sleep apnea syndrome (SAS) before and after sleep.
  
  
  METHODS
  Thirty-two patients (63 eyes) diagnosed as SAS from August 2003 to January 2007 were enrolled. Macular thickness were measured using optical coherence tomography (OCT) at 11:00 to 12:00 evening (before sleep)and 20 to 30 minute after sleep, respectively.
  
  
  RESULTS
  The mean macular thickness was (123.00+/-19.98)um and (134.25+/-19.92)um before and after sleep, respectively. The mean difference was (11.25+/-9.04)um before and after sleep(t=9.878,p<0.05),95%CI(8.98,13.53)um.
  
  
  CONCLUSIONS
  The macular thickness of SAS is increased in SAS patients, which may due to anoxia of SAS.
authors.affiliation: TCM Hospital of LiWan District Guangzhou 510060,Chian.
authors.forename: Yuming
authors.initials: Y
authors.lastname: Xie
authors.forename: Shaojun
authors.initials: S
authors.lastname: Zhou
authors.forename: Xiuying
authors.initials: X
authors.lastname: Xie
authors.forename: Dandan
authors.initials: D
authors.lastname: Wang
mesh_terms: D005123:Eye; D006801:Humans; D008269:Macular Edema; D012891:Sleep Apnea Syndromes; D041623:Tomography, Optical Coherence