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Sabia usted que…? – Did you know…?

You can fix your vision while you sleep. 
Orthokeratology lenses reshape your 
corneas overnight so you don’t need 
corrective lenses when you’re awake. 
When you remove them in the morning, 
you can see just as clearly as you would 
with prescription lenses.photo: eyelementsThe lenses can by worn 

whether you’re nearsighted, farsighted, or have small amounts of astigmatism. They also help slow the progression of nearsightedness in children. Source

http://didyouknowblog.com/  *  http://xmb.stuffucanuse.com/xmb/viewthread.php?tid=6414 * http://didyouknowblog.com/tagged/weird

Your sense of touch is so accurate 
that if your fingers were as big as Earth, 
they could detect the difference 
between houses and cars.  Source

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