title: Visual fields and OCT role in diagnosis of glaucoma.
abstract: OBJECTIVE
  To evaluate the clinical performance of visual field (VF) tests and optical coherence tomography (OCT) in diagnosing glaucoma.
  
  
  METHODS
  One hundred sets of disc photographs, red-free fundus photographs, VF tests, and OCT images were presented progressively to seven ophthalmologists. Each set was provided in three steps: (1) the disc and red-free fundus photographs were shown first; (2) then, VF tests were also provided; and (3) finally, the OCT results were provided. The same process was repeated on another day. Kappa statistics were used to assess the intraobserver and interobserver agreement, as well as the agreement with the reference standard.
  
  
  RESULTS
  The intraobserver agreement was almost perfect in this study and did not change markedly with the addition of diagnostic tools. The interobserver agreement increased from 0.54 to 0.61 when VF was added and increased slightly to 0.63 with OCT. The agreement with the reference standard also increased significantly from 0.48 to 0.61 after adding VF and increased slightly with additional OCT.
  
  
  CONCLUSIONS
  An optic disc evaluation and VF test are sufficient to diagnose glaucoma in most cases. However, OCT can play an important role in detecting glaucoma in cases in which it cannot be identified by optic disc examination and VF.
authors.affiliation: *MD †MD, PhD Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea (HWB, KHL, SH, GJS, CYK); and Department of Ophthalmology, Hallym Hospital, Incheon, Korea (NL).
authors.forename: Hyoung Won
authors.initials: HW
authors.lastname: Bae
authors.forename: Ka Hyun
authors.initials: KH
authors.lastname: Lee
authors.forename: Naeun
authors.initials: N
authors.lastname: Lee
authors.forename: Samin
authors.initials: S
authors.lastname: Hong
authors.forename: Gong Je
authors.initials: GJ
authors.lastname: Seong
authors.forename: Chan Yun
authors.initials: CY
authors.lastname: Kim
mesh_terms: D005901:Glaucoma / Q000175:diagnosis*; D006801:Humans; D015588:Observer Variation; D009798:Ocular Hypertension / Q000175:diagnosis; D009901:Optic Nerve Diseases / Q000175:diagnosis*; D010781:Photography; D041623:Tomography, Optical Coherence / Q000379:methods*; D014786:Vision Disorders / Q000175:diagnosis*; D058609:Visual Field Tests; D014794:Visual Fields