Prediction of a true-negative (TN) and a false-positive (FP) case. Grey areas represent the 95% confidence interval (95 CI) around the baseline value. Circles (o) represent the measured values in 3 consecutive exams, and the asterisk (∗) represents the predicted output. The cross (×) is calculated by linear interpolation and aligned to the 2nd follow-up. Continuous lines represent the measured trend, and the dashed lines represent the predicted trend. Measurements within the 95 CI are presented with the noise reduction applied. (A) TN, 17 years old. The system predicted stability, so there was no significant change, which coincided with the real measurements. (B) FP, 28 years old. The system predicted a significant change in the average keratometry in a 3 mm area around the maximum curvature point (KmaxZonalMean3mm) and LOGIK, but the measured values remained stable within the 95 CI. BFSF: best fit sphere of the front surface considering an 8 mm area, RmB: average radius of the back surface in mm, RsF: steepest radius of the front surface in mm.