The operating instructions?
"Wink your right eye to zoom in; wink your left eye to zoom out."
The new technology "could be a workaround for certain kinds of vision loss—or a futuristic upgrade to human sight," Science staff writer Kelly Servick reports.
"It relies on contact lenses (above) containing tiny aluminum telescopes that interact with a pair of eyeglasses to toggle between normal and 3x magnification."
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