Distribution of genotypes and alleles of the c.–441G>A (rs174538) and the g.61564299G>T (rs4246215) polymorphisms of the FEN1 gene and odds ratio (OR) with 95% confidence interval (95% CI) in patients with Fuchs endothelial corneal dystrophy (FECD) and controls. The gene discussed is FEN1; the disease is Fuchs endothelial corneal dystrophy.