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. 2016 Jul 13;57(9):OCT196–OCT203. doi: 10.1167/iovs.15-18886

Figure 3.

Figure 3

Bland-Altman comparison of spherical radius of curvature (Rc) measured by MRI and original uncorrected OCT (left) and corrected OCT (middle) as well as comparison of asphericity (Qxz) measured by MRI and corrected OCT (right). The differences in Rc in mm (y-axis) for the left and middle plots are set to the same scale to facilitate comparison between original and corrected OCT. Left: Rc for original OCT versus MRI: The mean difference was 24.03 mm. The Bland-Altman limits of agreement (±1.96× standard deviation of differences, gray lines) were −67.08 and 115.15 mm. Middle: Rc for corrected OCT versus MRI: The mean difference was −0.22 mm. The limits of agreement were −5.06 and 4.61 mm. Compared to the uncorrected OCT in the left plot, the difference and distribution are substantially smaller. Right: Qxz for corrected OCT versus MRI: The mean difference was −0.0515. The limits of agreement were −0.7234 and 0.6204.