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Correlation of behavioral and optical parameters. Landolt and Vernier acuity thresholds are plotted against optical parameters: axial length, HOA equivalent defocus and visual Strehl ratio (VSX) (n = 31). Coefficients of determination r2 and probability values p (Spearman's rank correlation) are shown in the upper right corner of each plot. Data points of the two subjects with the highest and lowest Strehl ratio are plotted in light blue and magenta, respectively (compare Figure 5).
