How do plaques make their way from our brain to the back of our eyes?

These plaques, which are the hallmarks of dementia, accumulates in smaller quantitates then it does in the brain. It’s a by-product of the the processing of a larger essential protein thats required in many cells in the body. This is why we can find amyloid-beta in small traces throughout the body. The retina is neural tissue so it’s accumulation has been associated to the same accumulation in the brain.