Forest plots showing associations between retinal layers and neurite density index. Boxes represent coefficients and horizontal lines represent 95% Confidence Intervals (non‐corrected). peripapillary RNFL (blue). GC‐IPL (red). GCC (green). Multiple linear regression models adjusted for sex, age, axial length of the eye, pulse pressure, body mass index, smoking status and total intracranial volume. A positive β coefficient corresponds to an increase in neurite density index better WM microstructure integrity, per one standard deviation increase in the retinal sublayer thickness. FDR, false discovery rate. Dichotomous retinal layers in the regions: ppRNFL for the sup corona radiata, and GCC for the cingulum hippocampus.