While Oxford professor Joshua Silver invented water-lens eyeglasses in 2008, University of Utah professor Carlos Mastrangelo has apparently developed his own design more recently. Mastrangelo runs his own research lab at U. of U.’s department of Electrical and Computer Engineering, and his version is hi-tech, unlike Silver’s low-tech design for developing nations.
Mastrangelo’s design uses piezoelectric tunable glycerin-filled lenses. To start with, the user enters their prescription into an app that communicates with the glasses. The glasses then automatically dial in the prescription. The kicker is that there’s some kind of distance sensor that supposedly continues to adjust the prescription in real time, depending on the distance of what you’re looking at. “This information is provided by a sensor mounted in the bridge of the glasses that uses pulses of infrared light to identify where the user is looking and provide the precise distance,” according to Mastrangelo’s research team. 
Here’s a look at the prototype:
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I’m a lapsed industrial designer. I was born in NYC and figured I’d die there, but a few years ago I abandoned New York to live on a farm in the countryside with my wife. We have six dogs.
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