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. Author manuscript; available in PMC: 2014 Jul 1.
Published in final edited form as: Optom Vis Sci. 2013 Jul;90(7):620–627. doi: 10.1097/OPX.0b013e318296ac4d

Figure 1.

Figure 1

Number of eyes that gained or lost 4 or more letters of acuity (n = 50, black bars) or less than 4 letters of acuity (n = 98, grey bars). Of those eyes gaining or losing 4 or more letters of acuity, 38 eyes lost acuity and 12 eyes gained acuity. Of those eyes that gained or lost 3 letters or less 11 eyes had no change, 51 lost and 36 gained letters of acuity. The 95% confidence limits for the random inclination for loss or gain in the two subsets are 25±6.9 and 49±9.7, respectively. Positive kurtosis but not skew was significant for the full dataset, failing Kolmogorov-Smirnov test for normalcy (KS = 0.095, p < 0.01).