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. Author manuscript; available in PMC: 2021 Jan 1.
Published in final edited form as: Exp Eye Res. 2019 Nov 5;190:107868. doi: 10.1016/j.exer.2019.107868

Figure 3. Deviation of Rc (in mm) from our OCT-based method (blue) versus keratometer (red) compared to known values of calibration spheres.

Figure 3.

We measured accuracy and repeatability of our OCT-based method by imaging three calibration spheres from each dimension, for a total of nine data points in blue. Keratometer accuracy was also evaluated for each of the three sphere dimensions, giving a total of three data points in red. Average absolute bias was 0.005 mm for OCT and 0.004 mm for the keratometer. All values were within 1% of the manufacturer reported dimensions.