An eye test may be able to identify people who have Alzheimer's years before they are actually diagnosed. Detecting the brain-wasting disease at an early stage could help researchers develop new therapies for treating Alzheimer's patients.

The initial findings from an Australian study show this eye test identified every participant who had Alzheimer's. The test detects proteins known as beta amyloids in the retina of someone with Alzheimer's using eye drops to give the proteins a yellow color. Beta amyloids are often found in the brain and have been linked to Alzheimer's

[Metro Networks].