Lab on a Contact Lens Can Measure Stress Through Serotonin
Lab on a Contact Lens Can Measure Stress Through Serotonin
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Smart contact lenses might one day measure body chemistry throughout the day
24 Sep 2026
4 min read
Charles Q. Choi is a contributing editor for IEEE Spectrum.

In the future, a contact lens printed with winding electronics could act as a wearable sensor for measuring biochemical signals like serotonin levels.
Minwoo Kim, Sang Won Lee, et al.
