Brilliant.

This is the most brilliant thing I have seen in a very long time!
This amazing creation is the work of retired oxford physics professor; Professor Joshua Silver. So they look like regular glasses but they are not, these glasses need no optometrist. You are the one who sets them up, you give your self a prescription. These glasses have a liquid inside with a syringe, you inject or take out the liquid until you can see clearly. No optometrist needed! They are cheap and very rugged and sustainable. There are already 10,000 of these in third world countries. They hope to have 1 Billion out by 2020.