title: Effects of Use of a Continuous Positive Airway Pressure Device on Glaucoma.
abstract: BACKGROUND
  The aim of this study was to investigate the prevalence of glaucoma in obstructive sleep apnea syndrome (OSAS) and to determine the efficacy of the equipment used in the treatment of this disease.
  
  
  METHODS
  In this cross-sectional study, 38 patients with OSAS used the continuous positive airway pressure (CPAP) device (Group 1) and 32 patients with OSAS refused CPAP device (Group 2). Thirty-six patients did not have OSAS (Group 3).
  
  
  RESULTS
  Patient age, gender, height, weight, and neck circumference did not differ among groups (p>0.05); and the apnea-hypopnea index (AHI) and respiratory disturbance index (RDI) values did not differ between Groups 1 and 2 (p>0.05). Vision and pachymetric values did not differ among groups (p>0.05). The IOP was significantly higher in Group 2 than in Group 1 (p<0.05) but did not differ between Groups 1 and 3 (p>0.05). The fundus C/D ratio was significantly higher (p<0.05) in Group 2 than in the other groups but did not differ between Groups 1 and 3 (p>0.05). In Group 1, 2, and 3, 5.2%, 12.5%, and 0%, respectively, of patients had glaucoma.
  
  
  CONCLUSIONS
  OSAS should be considered a significant risk factor for glaucoma. Eye tests may help to identify individuals with undiagnosed OSAS, and such testing of patients with diagnosed OSAS may allow early detection of glaucoma and referral of such patients for CPAP therapy to prevent development of complications.
authors.affiliation: ENT Clinics, TR Ministry of Health, Gaziosmanpasa Taksim Training and Research Hospital, Istanbul, Turkey.
authors.forename: Seckin
authors.initials: S
authors.lastname: Ulusoy
authors.affiliation: Ophthalmology Clinics, TR Ministry of Health, Corlu State Hospital, Tekirdag, Turkey.
authors.forename: Meltem
authors.initials: M
authors.lastname: Erden
authors.affiliation: ENT Clinics, TR Ministry of Health, Gaziosmanpasa Taksim Training and Research Hospital, Istanbul, Turkey.
authors.forename: Mehmet Emre
authors.initials: ME
authors.lastname: Dinc
authors.affiliation: As Health Neurology Clinic, Tekirdag, Turkey.
authors.forename: Nurdogan
authors.initials: N
authors.lastname: Yavuz
authors.affiliation: ENT Clinics, TR Ministry of Health, Kiziltepe State Hospital, Mardin, Turkey.
authors.forename: Erdem
authors.initials: E
authors.lastname: Caglar
authors.affiliation: ENT Clinics, TR Ministry of Health, Gaziosmanpasa Taksim Training and Research Hospital, Istanbul, Turkey.
authors.forename: Abdullah
authors.initials: A
authors.lastname: Dalgic
authors.affiliation: Ophtalmology Clinics, Dunya Goz Eye Hospital, Erzincan, Turkey.
authors.forename: Coskun
authors.initials: C
authors.lastname: Erdogan
mesh_terms: D000328:Adult; D000368:Aged; D045422:Continuous Positive Airway Pressure / Q000295:instrumentation* / Q000379:methods*; D003430:Cross-Sectional Studies; D005260:Female; D005654:Fundus Oculi; D005901:Glaucoma / Q000150:complications* / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D017286:Polysomnography; D012119:Respiration; D020181:Sleep Apnea, Obstructive / Q000150:complications* / Q000628:therapy; D016896:Treatment Outcome; D014785:Vision, Ocular