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. 2015 Jul 2;9(2):72–77. doi: 10.1016/j.optom.2015.05.001

Figure 1.

Figure 1

Relationship between the central corneal curvature (mean K) measured at first and last visit. N = 72 eyes. Mean time difference between the current and initial measurements: 28.7 (±6.9) years. The regression line is y = 0.63x + 2.26.