Corneal Refractive Therapy - Orthokeratology

I have excellent eyesight and don't wear glasses but my wife and 3 of the 4 kids have bad eyesight - so this sounds pretty cool:

Wouldn't it be great if your nearsightedness could be corrected while you sleep? It might sound far-fetched, but it's a reality for some people and is available throughout the country.

Here's how it works: When you sleep, you wear special contact lenses that gently reshape the surface of your eye, so you can see clearly even after you remove the lenses. The effect is temporary — generally enough to get you through a day or so, but you must wear the special lenses each night.