TYR and Schnyder corneal dystrophy: We observed an association of the ATN status and clinical diagnosis groups comparing cognitively unimpaired (NC, SCD) and cognitively impaired (MCI, DAT) participants for A−T−N− (p < .001), A−T+N− (p < .05), A+T−N− (p < .05), A+T+N− (p < .05), and A+T+N+ (p < .001).