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. 2024 Dec 4;19:93. doi: 10.1186/s13024-024-00776-y

Fig. 5.

Fig. 5

Impact of Visual System on AD Progression. This visual system illustration delineates discernible alterations observed in individuals affected by AD. Pathological hallmarks of AD, specifically amyloid plaques and tau tangles, manifest prominently in pivotal brain regions associated with visual function, including the visual cortex, pulvinar nucleus, lateral geniculate nucleus, suprachiasmatic nucleus, and superior colliculus. These pathological changes intricately correlate with disruptions in their associated functions. Within the ocular domain, atients with AD exhibit optic nerve degeneration, marked by the loss of axonal projections. Furthermore, AD is concomitant with a reduction in retinal thickness and a decline in retinal vasculature. ITC: inferior temporal cortex; LGN: lateral geniculate nuclei; PFC: prefrontal cortex; PPC: posterior parietal cortex; Pul: pulvinar; SC: superior colliculus; VC: visual cortex. Image created using Biorender