1st acquisition 2nd acquisition Mean Difference (LoA) ICC (95% CI) Cirrus  SL-AOD (μm) 623±271 617±259 6 (-154/165) 0.955 (0.935-0.969) RTVue SL-AOD (μm) 611±253 609±261 2 (-160−164) 0.953 (0.933-0.968) Cirrus  SL-TISA (mm2) 0.221±0.106 0.215±0.103 0.006 (-0.069−0.081) 0.934 (0.906-0.954) RTVue SL-TISA (mm2) 0.215±0.104 0.216±0.108 -0.001 (-0.069/0.068) 0.951 (0.930-0.966)

Table 1: Intra-instrument reproducibility with the Cirrus SD-OCT and the RTVue SD-OCT. Data are presented as mean ± standard deviation. (SL: Schwalbe’s Line, AOD: Angle Opening Distance, TISA: Trabecular-Iris-Space Area, ICC: Intraclass Correlation Coefficient, LoA: Limits of Agreement, CI: Confidence Interval).