Physicist's vision for helping world's poor: self-adjusting eyeglasses

Joshua Silver, a lifelong tinkerer, was fiddling around one day with a cheap, water-filled lens he'd built as an optics experiment when he noticed something interesting.

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<p><a href="http://www.physorg.com/news153377063.html">Physicist's vision for helping world's poor: self-adjusting eyeglasses</a></p> <p>Joshua Silver, a lifelong tinkerer, was fiddling around one day with a cheap, water-filled lens he'd built as an optics experiment when he noticed something interesting.</p>