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Table 2 Intra- and interobserver reproducibility of anterior chamber angle measurements made by Fourier Domain OCT

From: Fourier domain optical coherence tomography to assess the iridocorneal angle and correlation study in a large Caucasian population

Intraobserver reproducibility Mean ± SD ICC 95 % CI P value
TIA Session 1 (degrees) 33.66 ± 11.38 0.979 0.969–0.986 <0.001
TIA Session 2 (degrees) 33.69 ± 10.94
AOD500 Session 1 (μm) 491.16 ± 281.25 0.991 0.987–0.994 <0.001
AOD500 Session 2 (μm) 492.02 ± 280.84
TISA500 Session 1 (mm2) 0.178 ± 0.104 0.962 0.944–0.974 <0.001
TISA500 Session 2 (mm2) 0.181 ± 0.112
Interobserver reproducibility Mean ± SD ICC 95 % CI P value
TIA Observer 1 (degrees) 33.66 ± 11.38 0.954 0.933–0.969 <0.001
TIA Observer 2 (degrees) 33.03 ± 10.55
AOD500 Observer 1 (μm) 491.16 ± 281.25 0.975 0.964–0.983 <0.001
AOD500 Observer 2 (μm) 480.15 ± 295.72
TISA500 Observer 1 (mm2) 0.178 ± 0.104 0.947 0.922–0.964 <0.001
TISA500 Observer 2 (mm2) 0.174 ± 0.116
  1. TIA trabecular-iris angle, AOD 500 angle opening distance 500 μm from the scleral spur, TISA 500 trabecular-iris space area 500 μm from the scleral spur. ICC intraclass correlation coefficient, 95 % CI = 95 % confidence interval