Usually if you get something in your eye, your eye will tear up and wash out the foreign body. Sometimes, though, something gets in your eye and you can't quite get it out. A couple of health and safety warnings before we get whatever it is out of your eye. First off, be careful not to stratch your corneas. A scratched cornea can be quite painful and take a couple of days-if not longer- to heal. Be careful, and don't go poking around in your eye with anything that has any kind of sharp tip.
Also, be sure to wash your hands so you don't give yourself an eye infection.
If you have anything embedded in your eye, or bits of glass, metal, very large foreign bodies or chemicals in your eye, don't try to get them out yourself. Tape a paper cup over your eye and head to the ER or your doctor's office.
With that said, on to getting that thing out of your eye!
Edit: I completely neglected to cite sources I quoted. Mea culpa. If this was a paper, I'd get an F.
Thank goodness it's not and I don't!
Step 1: Method to try
Look in a mirror, if one's handy, and try to locate where the foreign object is in your eye.
The method you try will likely depend on where the nasty bit is in your eye.
First, no matter where the object is, try blinking. I don't mean a little sissy *wink, wink*. I mean, really BLINK. If this works and the object is out of your eye, congratulations! Please post a comment and tell me what a difference this instructable made in your life. Everyone else move on to the next method.