Clinical Study

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

Table 6

Mean (± standard deviation) AOD750 (mm) from each observer and their differences.

Observer AZC
(with adjudicator)
(mm)
Observer SR (session 1)
(mm)
Difference
(with adjudicator)
(mm)

All eyes

All quadrants0.411 ± 0.421
(0.404 ± 0.417)
0.400 ± 0.4010.011 ± 0.067
(0.004 ± 0.072)
 Nasal0.447 ± 0.427
(0.434 ± 0.427)
0.433 ± 0.4190.013 ± 0.064
(0.001 ± 0.056)
 Temporal0.458 ± 0.520
(0.455 ± 0.522)
0.448 ± 0.4950.010 ± 0.049
(0.008 ± 0.047)
 Superior0.355 ± 0.349
(0.343 ± 0.325)
0.358 ± 0.349−0.003 ± 0.042
(−0.015 ± 0.074)
 Inferior0.383 ± 0.380
(0.384 ± 0.380)
0.360 ± 0.3300.023 ± 0.100
(0.024 ± 0.098)

Open-angle eyes

All quadrants0.799 ± 0.430
(0.781 ± 0.437)
0.768 ± 0.4080.031 ± 0.097
(0.013 ± 0.109)
 Nasal0.832 ± 0.439
(0.810 ± 0.456)
0.801 ± 0.4460.032 ± 0.098
(0.009 ± 0.076)
 Temporal0.920 ± 0.576
(0.923 ± 0.573)
0.901 ± 0.5240.019 ± 0.073
(0.021 ± 0.071)
 Superior0.706 ± 0.307
(0.671 ± 0.282)
0.708 ± 0.309−0.002 ± 0.051
(−0.037 ± 0.107)
 Inferior0.735 ± 0.377
(0.723 ± 0.400)
0.662 ± 0.3260.073 ± 0.140
(0.061 ± 0.152)

Nonopen-angle eyes

All quadrants0.166 ± 0.133
(0.166 ± 0.131)
0.167 ± 0.131−0.001 ± 0.034
(−0.001 ± 0.032)
 Nasal0.203 ± 0.155
(0.197 ± 0.154)
0.201 ± 0.1540.002 ± 0.023
(−0.004 ± 0.040)
 Temporal0.166 ± 0.127
(0.160 ± 0.128)
0.161 ± 0.1300.005 ± 0.025
(−0.001 ± 0.021)
 Superior0.134 ± 0.108
(0.137 ± 0.104)
0.138 ± 0.108−0.004 ± 0.037
(−0.001 ± 0.041)
 Inferior0.160 ± 0.137
(0.170 ± 0.137)
0.169 ± 0.129−0.009 ± 0.046
(0.001 ± 0.024)