CYP19A1 and diabetes mellitus: For the influence of age on contrast sensitivity following small effects were seen: the univariable analysis found a decline of about −0.0044 logCS per year (CI [−0.0063 logCS; −0.0025 logCS]; P-value of 0.00001; the multivariable analysis also showed a decline of -0.0025 logCS per year (CI [−0.0047 logCS; −0.0003 logCS]; P = .026; other independent variables in the model: Tx, diabetes mellitus, aromatase inhibitors).