title: Enhanced depth imaging optical coherence tomography: choroidal thickness and correlations with age, refractive error, and axial length.
abstract: OBJECTIVE
  To evaluate choroidal thickness at five macular locations and assess the correlations between choroidal thickness at these locations with age, refractive error, and axial length.
  
  
  METHODS
  Eighty-four eyes from 42 healthy adult volunteers were included. Enhanced depth imaging by spectral-domain optical coherence tomography was performed, and choroidal thickness was measured at five macular locations: subfoveal and 3 mm nasal, temporal, superior, and inferior. Correlations of choroidal thickness at each location with age, refractive error, and axial length were analyzed.
  
  
  RESULTS
  Mean choroidal thicknesses at the subfoveal, superior, inferior, temporal, and nasal locations were 293, 308, 264, 263, and 174 μm, respectively. A correlation was found between choroidal thickness, age, refractive error, and axial length at all locations.
  
  
  CONCLUSIONS
  Mean subfoveal choroidal thickness in healthy adults is approximately 300 μm. A correlation was found between choroidal thickness and all parameters studied.
authors.affiliation: Department of Ophthalmology, Tel Aviv Medical Center, and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
authors.forename: Dafna
authors.initials: D
authors.lastname: Goldenberg
authors.forename: Elad
authors.initials: E
authors.lastname: Moisseiev
authors.forename: Michaela
authors.initials: M
authors.lastname: Goldstein
authors.forename: Anat
authors.initials: A
authors.lastname: Loewenstein
authors.forename: Adiel
authors.initials: A
authors.lastname: Barak
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D058452:Axial Length, Eye / Q000503:physiopathology*; D002829:Choroid / Q000033:anatomy & histology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000503:physiopathology*; D009929:Organ Size; D041623:Tomography, Optical Coherence; D014792:Visual Acuity / Q000502:physiology; D055815:Young Adult