Laser eye scan could predict Alzheimer's

A simple eye test is being developed to detect early signs of the onset of Alzheimer's disease.

The test will look for signs of a build up of the protein beta amyloid in the eye. Neuroptix, the company behind the product say the product uses a special laser to scan the eye and a reciever to monitor the level of protein build-up, a known sign in Alzheimer's sufferers.