Hi-tech contacts that do LOTS more than help you see: From testing blood sugar to giving eye drops. They can even have a zoom lens!

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Read more: http://www.dailymail.co.uk/health/article-3143714/Contact-lenses-Hi-tech-contacts-LOTS-help-testing-blood-sugar-giving-eye-drops-zoom-lens.html#ixzz3fsg2GmJI