As can be seen in Figs 6–8 and Table 2, the correlation across individuals between the CSF pathology biomarkers p-tau and Aß 42/40 differed across groups, with no significant association in the healthy group, while the SCD and MCI/AD groups showed a positive association between higher tau and amyloid pathology. The gene discussed is MAPT; the disease is Schnyder corneal dystrophy.