Transcript for Tests Could Recognize Alzheimer's Disease During Early Stages
We're going to turn to a possible break through in determining alz hheimer's. The first one is a simple eye test? Yeah. Promising news. This is coming out of the international Alzheimer's meeting. The eye is the window into the brain. Doctors are doing in this study, they're looking for bright dots in the back of the eye. In the retina, which are visible often times in patients with alz him -- Alzheimer's. We call that sensitivity. That's promising. The hope is this test can be used to screen for it before the onset of symptoms. I literally just got off the phone with the chief of a hospital in Philadelphia. He said this work is being done in Los Angeles, philly, all over the world. You see a lot of experts working on something. Very promising. Diminished sense of smell could be a sign? Yes. For a lot of the same reasons. The nose tells us how the brain is functions. Decreased sense of smell in patients with Alzheimer's. There's a promising way we can screen. Now to the dire and desperate search to find those
This transcript has been automatically generated and may not be 100% accurate.