Fig. 1From: The retinal ganglion cell layer reflects neurodegenerative changes in cognitively unimpaired individualsRepresentation of the optical coherence tomography (OCT) scan of the macula with posterior pole analysis (PPA). PPA is divided into 16 sectors numbered from 1 to 16. Temporal sectors included TS1, TS2, TS5, TS6, TI9, TI10, TI13, and TI14; nasal sectors are NS3, NS4, NS7, NS8, NI11, NI12, NI15, and NI16. Superior sectors were labeled from 1 to 8, whereas inferior sectors were from 9 to 16. The first PPA analysis is related to CSF pTau, the second image is related to CSF tTau, and the last PPA is related to hippocampus volume. Red circles highlight the GCL sectors with significant damage. CSF, cerebrospinal fluid; GCL, ganglion cell layerBack to article page