NEFL and Schnyder corneal dystrophy: As expected, ROC analyses for plasma NfL demonstrated low accuracy in separating CU Aβ− from CU Aβ+ , SCD, and MCI groups (AUC = 52–65%), but performed better for identifying AD dementia (KCL, AUC = 79%; Lund, AUC = 80%) with superior specificity (76–78%) than sensitivity (65–67%).