Slipping on a pair of reading glasses--or worse, keeping them hanging around your neck--just so you can read a recipe, food label, or text message may soon be a thing of the past. A British scientist is in the process of developing a lens made from liquid crystal--the same material used in TV screens and smartphones--that would restore 20/20 vision to middle-aged eyes.
As we age, the lenses in our eyes harden. That makes it harder for the muscles in the eyeball to change the shape of the lenses in order to focus on nearby objects. (If you're also near-sighted, you have a double whammy--your lenses cannot focus on objects that are in the distance, either.) That's why you need glasses.
Because they're made with a more liquid-y material, liquid crystal lenses can change their shape more easily. They'd have to be inserted by a doctor, but the procedure would be similar to cataract surgery or Lasik. The scientist who's working on the model now with a British contact lens company thinks they should be ready to the public by 2020.
We can hardly wait!
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