Another great talk at TED:
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. (Recorded at TEDGlobal 2009, in Oxford, England. Duration: 5:34)
[...] Und hier noch eine Methode, finanziell erschwingliche (und optisch selbst anpaßbare) Brillen “herzustellen” – via Medicine and Man: [...]