Google has said it is testing a "smart contact lens" that can help measure glucose levels in tears. It uses a "tiny" wireless chip and a "miniaturised" glucose sensor embedded between two layers of lens material.
The firm said it is also working on integrating tiny LED lights that could light up to indicate that glucose levels have crossed certain thresholds.
But it added that "a lot more work" needed to be done to get the technology ready for everyday use. "It's still early days for this technology, but we've completed multiple clinical research studies which are helping to refine our prototype," the firm said in a blogpost.
"We hope this could someday lead to a new way for people with diabetes to manage their disease."
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