Nope, and I can't remember the last time I had my vision tested.

You guys having trouble with your contacts:

It goes away. You just have to give it a week or so.

As for touching your eye... I never actually touch my eye. The contact does. I can get the contacts in and out without ever making contact with my eyes.

Love them.

I use the O2 lenses. Most comfortable lenses I have ever worn in my life--you pay a price for them, but it's worth it.