How smarter contact lenses work | The Economist

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Through a lens digitally Researchers are adding radio-powered sensors, drug-delivering systems and wireless digital displays to contact lenses Subscribe NOW to The Economist: econ.st/1Fsu2Vj Get more The Economist Follow us: twitter.com/TheEconomist Like us: facebook.com/TheEconomist View photos: instagram.com/theeconomist/ The Economist videos give authoritative insight and opinion on international news, politics, business, finance, science, technology and the connections between them.