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A new technology uses human teardrops to spot disease

Microscopic particles in teardrops offer intel on what’s going on in the body

a close-up on a person's eye, with a tear streaming down their cheek

A new method to rapidly analyze teardrops could help scientists detect molecular signatures of disease.

RunPhoto/The Image Bank/Getty Images Plus

By Meghan Rosen

- More than 2 years ago

Human tears could carry a flood of useful information.

With just a few drops, a new technique can spot eye disease and even glimpse signs of diabetes, scientists report July 20 in ACS Nano.