Figure 2: 2A and 2B: Bland-Altman plots demonstrate agreement in SL-AOD and SL-TISA measures between Cirrus and RTVue. The horizontal lines indicate the mean difference (solid line) and the limits of agreement (dotted lines) (SL: Schwalbe’s Line; AOD: Angle Opening Distance; TISA: Trabecular-Iris-Space Area).