The days of at work could be coming to an end, thanks to portable headsets being rolled out that track an employee's eye movements and assess whether they are actively high.The makers of the $399-per-month devices, known as , say they are already on order to big manufacturing, transport, energy and mining firms, while some US police forces are considering using them to test motorists.The devices are essentially virtual reality headsets with eye-tracking sensors that measure tiny movements — an automated version of the tests cops already perform on those suspected of driving under the influence of drugs.
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