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Correlations between cognitive assessment and RNFL changes in OCT in healthy aging subjects

The retinal nerve fibre layer (RNFL) comprises retinal ganglion cell axons and link the outer neuroretina to the higher visual cortex. The retina is the only part of the central nervous system that can be visualised directly and non‐invasively by optical coherence tomography (OCT). The study aimed to examine whether changes in the visual pathway are correlated with various domains of cognitive function assessment. We evaluated correlation between retinal structural (OCT) and neuropsychological (trail making test, TMT; Boston naming test, BNT) measures in healthy aging subjects.