Falls, eye test may give clues to Alzheimer's

PARIS - Scientists in Australia are reporting encouraging early results from a simple eye test they hope will give a noninvasive way to detect signs of Alzheimer's disease.

Although it has been tried on just a small number of people and more research is needed, the experimental test has a solid basis: Alzheimer's is known to cause changes in the eyes, not just the brain. Other scientists in the United States also are working on an eye test for detecting the disease.

A separate study found that falls might be an early warning sign of Alzheimer's.