Revolutionary Eyeglasses You Tune Yourself, No Optician Needed | GOOD
Here’s how the glasses work. They have two lenses with a silicon gel in between. You pump in more or less silicon while looking at a reading chart until the letters are crisp and clear, then you have the right prescription. That’s it. Silver—who is an atomic physicist by trade—told the Guardian, “Glasses like these are perfect for use in the third world. We can send them to schools where teachers can direct pupils to set their spectacles to suit each one’s vision. It is as simple as that.”