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Eye Vessel Blockages Signal Higher Dementia Risk

How retinal blood flow problems may offer an early clue to Alzheimer’s disease

Naveen Sankar S's avatar
Naveen Sankar S
Jan 13, 2026
∙ Paid

People diagnosed with blocked blood vessels in the retina were significantly more likely to later develop Alzheimer’s disease, vascular dementia, or any form of dementia. Because the retina shares blood vessel and nerve features with the brain, eye findings may serve as an early warning sign of broader neurovascular disease.

Study Details

Alzheimer’s dise…

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