title: Comparison of Enhanced Depth Imaging and Swept Source Optical Coherence Tomography in Assessment of Choroidal Thickness in Vogt-Koyanagi-Harada Disease.
abstract: OBJECTIVE
  To compare enhanced depth imaging (EDI-OCT) and swept source optical coherence tomography (SS-OCT) in assessment of Vogt-Koyanagi-Harada (VKH) disease.
  
  
  METHODS
  All consecutive VKH patients seen at Singapore National Eye Centre during 2012-2013 were imaged using both modalities. Subfoveal choroidal thickness (SFCT) was measured by one masked trained observer.
  
  
  RESULTS
  A total of 137 pairs of scans were obtained from 48 patients. SFCT was more likely to be measurable on SS-OCT than EDI-OCT (112, 81.8%; 84, 61.3%; p<0.001 Fisher's Exact test). There was good inter-OCT correlation of SFCT when both scans were measureable (mean of the difference in SFCT ± 2 standard deviations (SD) of -14.5 ± 21.0 μm).
  
  
  CONCLUSIONS
  SS-OCT images are superior to EDI-OCT but the SFCT measurements are comparable when both are readable.
authors.affiliation: a Singapore National Eye Centre , Singapore.|b Department of Ophthalmology , Yong Loo Lin School of Medicine, National University of Singapore , Singapore.|c Singapore Eye Research Institute , Singapore.|d Duke-National University of Singapore Graduate Medical School , Singapore.
authors.forename: Soon-Phaik
authors.initials: SP
authors.lastname: Chee
authors.affiliation: e National University of Singapore , Singapore.
authors.forename: Shu-Wen Nicole
authors.initials: SN
authors.lastname: Chan
authors.affiliation: a Singapore National Eye Centre , Singapore.|f Division of Ophthalmology , Changi General Hospital , Singapore.
authors.forename: Aliza
authors.initials: A
authors.lastname: Jap
mesh_terms: D000328:Adult; D002829:Choroid / Q000473:pathology*; D005260:Female; D005451:Fluorescein Angiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D009929:Organ Size; D012189:Retrospective Studies; D012846:Singapore; D041623:Tomography, Optical Coherence / Q000379:methods*; D014607:Uveomeningoencephalitic Syndrome / Q000175:diagnosis*; D014792:Visual Acuity
keywords: Assessment; Vogt–Koyanagi–Harada; enhanced depth imaging; optical coherence tomography; swept source