Revolutionary eye test can detect the early signs of dementia, trials show

A simple eye test can quickly detect the early signs of a rare type of dementia, a new study found.

The thinning of the outer retina indicates the patient has frontotemporal dementia, an uncommon type of dementia that mainly affects the front and sides of the brain.

It is hard to diagnose because it does not initially cause memory problems and like other types of dementia, it tends to develop slowly and get gradually worse over several years.

Now scientists at the University of Pennsylvania School of Medicine have found eye changes may signal frontotemporal dementia, also known as frontotemporal lobe degeneration (FTD). 

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