There is a somewhat painful, but simple solution.
Your eye is worn out, and you need a new one.
First, you will need an oyster spoon. This is easiest. Other spoons could make the following more difficult.
Now, lubricate the spoon with some inactive oil. I find olive works best, although you could easily use any other alternative.
Now, carefully insert the spoon into the ocular cavity of the twitching eye, taking care to ensure you don't damage the socket tissues or muscles. Carefully push the spoon until you feel an immovable point; this is your optic nerve. Now for the painful bit. hit the spoon sharply to sever this, and pop your old eye out.
Use some gauze to cover the socket while a new one grows in its place. If, at any point, you feel severe pain, go immediately to a doctor.
Hope that helps you out.