title: Anterior chamber measurements by pentacam and AS-OCT in eyes with normal open angles.
abstract: OBJECTIVE
  To assess the reproducibility and agreement of anterior chamber measurements between the Pentacam (PTC) and the Anterior segment optical coherence tomography (AOCT) in normal healthy eyes with open angle.
  
  
  METHODS
  Prospective cross-sectional comparative case series. A total of 162 eyes of 81 healthy volunteers with normal open angle were included in this study. Anterior chamber angle (ACA) and anterior chamber depth (ACD) were measured with PTC and AOCT. Intra-observer variability and inter-methods agreement of both instruments for ACA and ACD were evaluated.
  
  
  RESULTS
  Values of temporal and nasal ACA measured by two instruments were similar, and the results of ACD were also not significantly different between modalities (p > 0.01). ACA and ACD measurements by PTC and AOCT showed good intra-observer and inter-method agreements (all > 0.9).
  
  
  CONCLUSIONS
  PTC and AOCT are presumed to be very useful for the anterior chamber angle examination. They may provide good images and quantitative data about the angle structures including ACA and ACD.
authors.affiliation: Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Jeong-Ho
authors.initials: JH
authors.lastname: Yi
authors.forename: Samin
authors.initials: S
authors.lastname: Hong
authors.forename: Gong Je
authors.initials: GJ
authors.lastname: Seong
authors.forename: Sung Yong
authors.initials: SY
authors.lastname: Kang
authors.forename: Kyoung Tak
authors.initials: KT
authors.lastname: Ma
authors.forename: Chan Yun
authors.initials: CY
authors.lastname: Kim
mesh_terms: D000293:Adolescent; D000328:Adult; D000867:Anterior Chamber / Q000033:anatomy & histology*; D000869:Anterior Eye Segment; D003430:Cross-Sectional Studies; D003941:Diagnostic Techniques, Ophthalmological; D005260:Female; D006801:Humans; D008297:Male; D015588:Observer Variation; D010781:Photography / Q000379:methods*; D011446:Prospective Studies; D015203:Reproducibility of Results; D041623:Tomography, Optical Coherence / Q000379:methods*; D014129:Trabecular Meshwork / Q000033:anatomy & histology; D055815:Young Adult