(A) The average of spherical equivalent in left and right eyes at baseline visit was distributed with a mean of -0.20 D and a standard deviation of 2.9 D (B) The residual spherical equivalent after adjusting for age, sex, years of education, nuclear sclerosis and the first two principal components was distributed with a mean of 0 D and a standard deviation of 2.7 D. (C) Compared to the full BDES cohort, the distribution of spherical equivalent in the analyzed cohort was more heavy-tailed. To access the data, click or select the words “Appendix 1.”