Colour-Shifting Contact Lenses Alert Diabetics to Glucose Levels

Diabetics are saddled with the unenviable task of checking their blood sugar levels constantly, usually through a repeated ritual of pin-pricks and blood drawing. But a new non-invasive technology developed by a biochemical engineer at the University of Western Ontario lets diabetics keep tabs on their glucose levels with contact lenses that change colours as their blood sugar rises and falls

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