Is it safe to sleep with your contact lenses on?

Question

Like naps? Cause after I finish tests in school I sleep. Will it cause blindness?

And if you sleep with them at night on, what happens? (I don't plan to though)

And what are extended wear contacts? (my classmate mentioned them once)

Do they come in colors?

Answer 1

Some contacts are oxygen permeable(sp?) which lets them "breathe" more.  

It won't cause blindness, but dryness, crusty'ness' and irritation are possible.

Eyedrops without sodium in them (Visine = no good) are a great solution.  

Colored contacts do exist, but stick with your natural color = cheaper lenses.

Answer 2

No, it won't cause blindness but it's not reccomened to do foten it can dry out your eyes. All you might experience in the morning are sticky eyes. Now and again is fine.

Answer 3

No it will not cause blindness!! And when you take ur naps and sleep with them at night nothing wont happen if you do it every once in a while..... know y cuzz I do it.. and it also depends on what kind of contacts you have...