clipped from blog.ted.comJosh Silver delivers his brilliantly simple solution for correcting vision at the lowest cost possible -- adjustable, liquid-filled lenses. At TEDGlobal 2009, he demos his affordable eyeglasses and reveals his global plan to distribute them to a billion people in need by 2020. (Recorded at TEDGlobal 2009, in Oxford, England. Duration: 5:34)
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