The contact lenses that could restore 20/20 vision

you wear the lenses every night and take them off every morning. during the night the lenses flatten the curvature of the eye so that you have perfect vision for a day.

seem safe for children too. the technique is called Ortho-K.

"...the method is popular in the Netherlands, Switzerland, Germany and the US, and is gaining ground in this country as more people hear about it."

the article on wikipedia is here : http://en.wikipedia.org/wiki/Orthokeratology