Ideas worth spreading

Adjustable liquid-filled eyeglasses

886,794 views | Joshua Silver • TEDGlobal 2009

Josh 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.

Josh 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.

This talk was presented at an official TED conference. TED's editors chose to feature it for you.

About the speaker

Joshua Silver

Optical innovator

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Atomic physicist Joshua Silver invented liquid-filled optical lenses to produce low-cost, adjustable glasses, giving sight to millions without access to an optometrist.

This talk was presented at an official TED conference. TED's editors chose to feature it for you.