MAPT and Alzheimer disease: In a recent study from the Netherlands Brain Bank, the mean surface percentage of p‐tau positivity with Ser202/Thr205 (b = 23, SE = 8, p < 0.01) and Th217 (b = 10, SE = 5, p = 0.04) in the retinal far periphery could differentiate AD and Braak stages I to III NFT from normal controls with Braak stage 0.97