Smart Contact Lenses Measure Eye Pressure
August 9, 2008
Adapted from the University of California - Davis
contact lenses that measure pressure within the eye and dispense medication
accordingly could be made possible using a new material developed by biomedical
engineers at the University of California (UC) - Davis.
assistant professor of biomedical engineering, and postdoctoral researcher
Hailin Cong started with a material called polydimethylsiloxane (PDMS). They
developed a method for placing powdered silver on the PDMS in a precise pattern,
to create conductive wires. The silver also has antimicrobial
The researchers were able to shape the PDMS-silver into a
contact-lens shape, and show that it could function as a simple pressure sensor.
Glaucoma, a build-up of pressure in the eye, is a leading cause of blindness
worldwide. A contact lens that could continuously measure pressure within the
eye and relay the data to a computer would allow doctors to learn more about
glaucoma and improve patient treatment.
The researchers plan to apply for
approval to begin trials of the lenses in humans, Pan said.
View all news updates for glaucoma
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