The California-based company, which has been quiet about what it's been working on for five years, has finally shared its plan for the world's "first true smart contact lens." But let's be clear: This is not a product you'll see on store shelves next autumn. It's in the research and development phase—a few years away from becoming a real product. In fact, the demos I tried did not even involve me plopping on a contact lens—they used virtual reality headsets and held up bulky prototypes to my eye, as though I was Sherlock Holmes with a magnifying glass.
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