Vision for all

Inventor’s 2020 vision: to help 1bn of the world’s poorest see better:

Silver has devised a pair of glasses which rely on the principle that the fatter a lens the more powerful it becomes. Inside the device’s tough plastic lenses are two clear circular sacs filled with fluid, each of which is connected to a small syringe attached to either arm of the spectacles.

The wearer adjusts a dial on the syringe to add or reduce amount of fluid in the membrane, thus changing the power of the lens. When the wearer is happy with the strength of each lens the membrane is sealed by twisting a small screw, and the syringes removed. The principle is so simple, the team has discovered, that with very little guidance people are perfectly capable of creating glasses to their own prescription.

Such an amazing idea. With self-adjustable glasses cheap enough, and with the right distribution networks, sight could be restored to massive numbers of poor people in the world.

Note to the altruistic

Don’t give to GiveWell

Is This Transparency? OP with very slim, one-year posting history asks a question about finding a good charity in AskMe, just prior to year-end tax-decision time. Newly registered responder posts a newly formed charity-aggregator/evaluator organization, without mentioning that he is, apparently, one of the two founders. Self-promotional setup leading to self-link? Or am I being too cynical?

Follow the link above to read an interesting account of these ivy-league hedge fund kids trying to game MetaFilter to their advantage. That, plus the fact that they used the same URL as that crappy health care gift card, means that if I had any extra money, I wouldn’t be sending it their way.