In total, 10 participants of the SCD group were identified as APOE ε4 carriers, and the assessment of FBB PET revealed 8 amyloid-positive participants by visual assessment (i.e., 7 in the SCD and 1 in the HC group) and a mean cortical cSUVR of 1.1 in the total sample. This evidence concerns the gene APOE and Schnyder corneal dystrophy.