Fig. 2

Peripapillary retinal nerve fiber layer thickness. Peripapillary retinal nerve fiber layer (pRNFL) thickness in μm in posterior cortical atrophy (PCA, n = 25, red), typical Alzheimer’s disease (tAD, n = 23, blue) and controls (n = 70, green) (means and SD) in a TSNIT plot showing pRNFL thickness in different sectors (temporal, superior, nasal, inferior)