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. 2016 May 9;6:25534. doi: 10.1038/srep25534

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Copyright © 2016, Macmillan Publishers Limited

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(A) In a total of 64 patients, 44 (69%) were identified as male with 20 (31%) were identified as female suggesting increased male dominance in the KC population. (B) Distribution of KC patients based on treatment for correction for visual acuity deficits due to KC in male KC patients. (C) Average age of KC patients divided by gender. Gender correlations with (D) severity of KC as clinically diagnosed as KC grade, (E) measure of central corneal curvature (Kmax), and (F) minimum central corneal thickness (CCt_min). Statistical significance was measured using a Mann-Whitney two-tailed T-test with p ≤ 0.05 considered statistically significant. Error bars represent standard error of the mean. n = 64 total patients, with the clinical parameters for each KC eye tabulated in (D–F), total number of eyes ≥ 110.