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posted by CoolHand on Sunday February 12 2017, @01:42AM   Printer-friendly
from the modern-conveniences dept.

[T]he days of popping reading glasses on and off or constantly shifting your gaze through bifocals may be numbered. Researchers at the University of Utah have developed "smart glasses" with liquid lenses that can automatically adjust their focus.

"The major advantage of these smart eyeglasses is that once a person puts them on, the objects in front of the person always show clear, no matter at what distance the object is," says Carlos Mastrangelo, the electrical and computer engineering professor who led the research along with doctoral student Nazmul Hasan.

[...] The new smart glasses consist of lenses made of glycerin, a thick clear liquid, enclosed in flexible membranes. The membranes can be mechanically moved back and forth, changing the curvature of the glycerin lens. The lenses are set in frames containing a distance meter on the bridge, which measures the distance from the wearer's face to nearby objects using infrared light. The meter then sends a signal to adjust the curve of the lens. This adjustment can happen quickly, letting the user focus from one object to another in 14 milliseconds.

The glasses come with a smartphone app, which uses data about the wearer's eyeglass prescription to automatically calibrate the lenses via Bluetooth. When the wearer gets a new prescription, they can simply update the information on the app.


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  • (Score: 2, Insightful) by slap on Sunday February 12 2017, @03:28AM

    by slap (5764) on Sunday February 12 2017, @03:28AM (#465979)

    A pair of progressive prescription glasses can run $400-$700, and can be good for many years if your eyes don't change much. How much will these new glasses cost, and how long will they last?

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  • (Score: 2) by davester666 on Sunday February 12 2017, @06:15AM

    by davester666 (155) on Sunday February 12 2017, @06:15AM (#466033)

    $10/month. Fail to pay for the next month, glasses stop working.

  • (Score: 2) by mcgrew on Sunday February 12 2017, @06:16PM

    by mcgrew (701) <publish@mcgrewbooks.com> on Sunday February 12 2017, @06:16PM (#466232) Homepage Journal

    For $15,000 you can get corrective surgery. The FDA approved the CrystaLens implant [bausch.com] in 2003, I had one implanted in my left eye in 2006 and went from coke bottle glasses to no eyewear at all, not even reading glasses, and I turn 65 this year.

    They were developed for cataracts, but since they focus they also cure myopia, presbyopia, and astigmatism. Before surgery my eyesight was 20/400, now it's 20/16.

    Far better than any glasses or contacts. I'm getting my other eye done soon...

    --
    mcgrewbooks.com mcgrew.info nooze.org
  • (Score: 2) by darnkitten on Sunday February 12 2017, @08:43PM

    by darnkitten (1912) on Sunday February 12 2017, @08:43PM (#466286)

    ...And what happens if you drop them or knock them off the bathroom counter?