What the eyes can reveal about health

  • Barbara Pierscionek
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Pupils react immediately to light

Scientists from the University of California, San Diego, USA, have developed a mobile application capable of detecting the first signs of diseases such as Alzheimer’s disease or other neurological conditions. This tool uses the smartphone camera to track changes in pupil size at a sub-millimeter level.

These assessments can be used to check a person’s cognitive status.

As technology advances, the eyes can become increasingly useful in diagnosing all sorts of diseases and conditions because, being transparent, they require much less invasive methods of examination than other parts of the body.

But even without technology, it’s possible to detect a range of health conditions just by looking into the eyes.

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