Clinical Study

Reproducibility of Scleral Spur Identification and Angle Measurements Using Fourier Domain Anterior Segment Optical Coherence Tomography

Table 7

Interobserver correlation coefficient (ICC) for TISA750 and AOD750.

TISA750AOD750
By 2 observers
(with adjudicator)
By 2 observers
(with adjudicator)
ICC / /SDTISAICC / /SDAOD

All eyes

All quadrants0.981
(0.972)
0.098
(0.028)
0.020
(0.007)
0.986
(0.984)
0.029
(0.031)
0.027
(0.011)
 Nasal0.979
(0.987)
0.233
(0.033)
0.047
(0.005)
0.988
(0.992)
0.087
(0.100)
0.032
(0.002)
 Temporal0.993
(0.996)
0.050
(0.045)
0.006
(0.004)
0.995
(0.996)
0.200
(0.048)
0.020
(0.015)
 Superior0.986
(0.933)
0.110
(0.250)
0.019
(0.093)
0.993
(0.975)
0.108
(0.024)
0.008
(0.045)
 Inferior0.960
(0.954)
0.211
(0.178)
0.060
(0.055)
0.959
(0.961)
0.196
(0.042)
0.066
(0.068)

Open-angle eyes

All quadrants0.957
(0.936)
0.183
(0.009)
0.054
(0.003)
0.971
(0.967)
0.320
(0.119)
0.074
(0.032)
 Nasal0.955
(0.973)
0.236
(0.082)
0.073
(0.020)
0.975
(0.987)
0.327
(0.118)
0.073
(0.021)
 Temporal0.992
(0.995)
0.070
(0.065)
0.009
(0.020)
0.991
(0.992)
0.260
(0.296)
0.035
(0.039)
 Superior0.958
(0.785)
0.156
(0.396)
0.048
(0.282)
0.987
(0.932)
0.039
(0.346)
0.006
(0.131)
 Inferior0.902
(0.892)
0.503
(0.342)
0.215
(0.165)
0.907
(0.908)
0.521
(0.401)
0.216
(0.174)

Nonopen-angle eyes

All quadrants0.959
(0.971)
0.023
(0.114)
0.006
(0.028)
0.968
(0.970)
0.029
(0.031)
0.011
(0.011)
 Nasal0.985
(0.987)
0.434
(0.070)
0.071
(0.012)
0.989
(0.967)
0.087
(0.100)
0.010
(0.028)
 Temporal0.928
(0.956)
0.038
(0.138)
0.015
(0.042)
0.982
(0.987)
0.200
(0.048)
0.039
(0.010)
 Superior0.966
(0.969)
0.057
(0.080)
0.016
(0.021)
0.943
(0.929)
0.108
(0.024)
0.035
(0.009)
 Inferior0.947
(0.966)
0.276
(0.146)
0.092
(0.040)
0.943
(0.984)
0.196
(0.042)
0.068
(0.005)