Debris such as dirt, sand, nail polish, pieces of a feather, etc., may get into your eye and cause discomfort or corneal scarring. Avoid rubbing your eye, and instead, use tears to flush it out. Pull your upper eyelid down gently to hang over your lower eyelashes and blink a few times. If blinking fails to dislodge the debris, gently dab your eye with a tissue after closing your eyes. This action is likely to help as it increases tear production. Remember to wash your hands thoroughly before touching your eyes. You can also use a cotton swab to gently remove the debris on your eyelid or in an accessible area of your eye. If all these methods fail, you can flush it out by rinsing your eye as long as possible with cool water from a sink or use artificial tears if you have them. Another option is to gently wipe it away using a wet washcloth if you see it on your eyeball. However, avoid this method if the object is stuck in your eye.