Retinal Layer Thickness and PET Centiloid Values in Cognitively Unimpaired Older Adults

Abstract

Background: Beta amyloid (Aβ) PET results are quantified in centiloids to standardize cerebral Aβ burden, an established Alzheimer's disease (AD) biomarker. Spectral domain optical coherence tomography (SD‐OCT) imaging studies of the retina support retinal layer thinning as a biomarker of AD.