answer:Eye twitching, eyelid tics and spasms are pretty common. Usually only the bottom lid of one eye is involved, but the top eyelid also can twitch. Most eye twitches come and go, although they can last for weeks or even months. Called myokymia in doctor lingo, these rippling muscle contractions in an eyelid can be triggered by: Stress Tiredness Eyestrain Caffeine Alcohol Dry eyes Nutritional imbalances Allergies Almost all sudden-onset eyelid twitching is benign, meaning the condition is not serious or a sign of a medical problem. However, this kind of eye twitching also can be hard to treat. The only option for making the twitching stop may be to figure out the cause and deal with it. Did you know there is even a website dedicated to it: www.eyetwitching.net