APOE and familial hyperaldosteronism: The AngioTool peripapillary analysis revealed significant differences between FH+ ApoE ɛ4+ HBP- and (i) FH+ ApoE ɛ4- HBP- in the % area occupied by vessels and the mean total length of vessels (p < 0.05, in both cases); (ii) FH+ ApoE ɛ4- HBP+ in the % area occupied by vessels (p < 0.05) (Table 3).