Contacts that restore 20/20 vision

You wear these hard contacts at night and then during the day you have 20/20 vision!  They reshape your eye while you are sleeping - this technique is based on an ancient Chinese tradition of putting sandbags on the eyes of people with myopia at night.  It helped shorten the eye and allowed them to see better during the day.

These "new" contacts are made by Ortho-K and while they've been popular in Europe for a while they are just now making their way to the US.  You can read about one reporter's experience in the article The contact lenses that could restore 20/20 vision.