Scientists at the University of California, San Diego, have developed a smartphone app that can detect early signs of Alzheimer’s disease and other neurological conditions. The app uses the phone’s near-infrared camera to track changes in the size of a person’s pupils at a sub-millimetre level. These measurements can then be used to assess that person’s cognitive condition.
As technology evolves, the eyes will prove more and more useful as a means of diagnosing all kinds of diseases and conditions because, by being transparent, the eye requires far less invasive methods of examination than other body parts….