An Oxford professor, Josh Silver, is on an ambitious, yet very admirable, mission: to create mass produce glasses so that billion people could see better without the help of an optician. The problem with the most poorest people in the world is that they cannot afford to buy glasses, let alone see an optician, something that is also a very limited practice in the third world.

What if it were possible, he thought, to make a pair of glasses which, instead of requiring an optician, could be “tuned” by the wearer to correct his or her own vision? Might it be possible to bring affordable spectacles to millions who would never otherwise have them?

More than two decades after posing that question, Silver now feels he has the answer. The British inventor has embarked on a quest that is breathtakingly ambitious, but which he insists is achievable – to offer glasses to a billion of the world’s poorest people by 2020. (Source)

What if you could adjust your glasses yourself without the help of an optician? What would happen if you could build these at the cost of one US dollar per piece? How would this help in education if over 15% of the world’s population could see better?

Read on at the Guardian.