Contact Lenses Could Soon Monitor Glucose Levels

This blog post was originally written for VSP's blog. I was fascinated to hear about this new technology, and I'd love to hear what you think about it!

I was amazed to read that contact lenses may soon be a source for measuring glucose. How incredible would that be?

Professor Jin Zhang at The University of Western Ontario developed a technology that allows particles in contact lenses to change color based on the amount of glucose found in tears. This would give someone with diabetes an alternative to drawing blood when testing their glucose levels. They’d simply have to look in the mirror!

While I can’t quite fathom exactly how the color change would work with a person’s contact lenses, it certainly seems like a huge discovery. I can’t wait to see how this technology ends up developing.

The University of Western Ontario Newsroom

Views: 36

Tags: Contact Lens, Professor Jin Zhang, University of Western Ontario, monitor glucose

Comment by Gerri on January 11, 2010 at 8:07pm
Would be interesting to know more about how this works. Imagine having someone else see your eyes changing color! Unless the contact lenses also flashes a number, we might still have to test. It would be nice to know if BG is going or down.
Comment by Robyn on January 11, 2010 at 8:27pm
Oh I would love this.....just think...brown, green, blue all in one day. Unless, they would go orange, red, yellow etc. LOL
Very interesting...curious to know more.
Comment by Melissa Warren on January 11, 2010 at 9:17pm
Good point, Gerri. It would probably have to be used as a tool that would complement blood tests. I would imagine the information available would be limited with this technology, but who knows what the possibilities may end up being. I think it would be particularly helpful for people who have a fear of testing their blood.
Comment by Scott on January 11, 2010 at 9:31pm
I seriously wonder how useful this will actually be in actual practice. A color can only be an indication and we'd have to rely on others or be constantly be looking in a mirror. There is other tech that has been designed that uses RF to actually give an actual reading. Personally, I'd prefer to have one of the tatoos that have been proposed to have an indication of what is going on.
Comment by PatientX on January 11, 2010 at 9:34pm
this would be cool, like a mood ring. I wear contacts now so that would be cool to get a pair of those
Comment by Kristin on January 12, 2010 at 2:08am
I saw this and while I think it is cool, I am not sure that I want to the whole world knowing how my blood sugar is changing. I am with Scott and I like the tatoo idea better.

But Scott, don't you always have a mirror in your pocket enabling you to check out your studly face???
Comment by Scott on January 12, 2010 at 6:11am
Why yes, Kristin, I do... /wink
Comment by Melissa Warren on January 12, 2010 at 11:03am
The tattoos are another interesting idea.
Comment by Linda G on January 12, 2010 at 1:29pm
Here too, don't know if I want everyone to know what my BG is doing....especially if THEY are aware of a change of colour and I'm the suggestion of a sticker to put in you car's windshield stating that I'm a diabetic....people might panic lol
Comment by Melissa Warren on January 12, 2010 at 2:12pm
I wonder if there's a way for the contact lenses to only change colors slightly so it wouldn't be easily noticable to others.


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