New contact lenses help diabetics monitor blood sugar

New contact lenses help diabetics monitor blood sugar

By Adrian Galbreth

Revolutionary new contact lenses could prove useful for diabetic patients by helping them analyse their blood sugar levels.

The non-invasive technology could replace the need for daily blood tests, as the lenses will change colour to alert people to changes in their blood sugar.

Biochemical engineering professor Jin Zhang at the University of Western Ontario is behind the lenses, which incorporate small nanoparticles embedded into the hydrogel lenses.

These nanoparticles react to glucose levels in tears, causing the contact lenses to change colour.

According to the university, the nanoparticles have a range of potential applications beyond biomedical devices, including for food packaging.

AllAboutVision.com recently suggested that the coming year will see contact lenses being studied for a variety of futuristic uses.

According to the website, which was making its eye care predictions for 2010, contact lenses could be used to monitor vital body signs and give instant views of charts, graphics and other displays via the web.

by Adrian Galbreth

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