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These 'Smart Glasses' Might Replace Your Bifocals

These 'Smart Glasses' Might Replace Your Bifocals

A team at the University of Utah has developed a "liquid" lens system that might replace traditional multi-focal lenses in the near future.

NBC News2017年2月9日

Bifocals History

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Transitions Lenses | Light Intelligent Photochromic Lenses

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Form2 History Lesson 1 Trade

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Bifocals and varifocals

Bifocals and varifocals

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Why Can’t I See the Computer Clearly With My Bifocals?

Why Can’t I See the Computer Clearly With My Bifocals?

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These Hi-Tech Bifocals Improved My Eyesight but Made Me Look Like a Huge Dork

These Hi-Tech Bifocals Improved My Eyesight but Made Me Look Like a Huge Dork

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These 'Smart Glasses' Might Replace Your Bifocals

These 'Smart Glasses' Might Replace Your Bifocals

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