The most common things that make the muscle in your eyelid twitch are fatigue, stress, and caffeine. Once spasms begin, they may continue off and on for a few days. Then, they disappear. Most people experience this type of eyelid twitch on occasion and find it very annoying. In most cases, you won't even notice when the twitch has stopped. More severe contractions, where the eyelid completely closes, are possible. These can be caused by irritation of the surface of the eye (cornea) or the membranes lining the eyelids (conjunctiva). Sometimes, the reason your eyelid is twitching cannot be identified. This form of eyelid twitching lasts much longer, is often very uncomfortable, and can also cause your eyelids to close completely. http://www.nlm.nih.gov/medlineplus/ency/article/000756.htm

a couple reasons: 1. you need rest or 2. you got into some BAD drugs well I guess it could be both

Mine does that too from time-to-time. The more you think about it, the more annoying it is. Try to sleep or at least lie down and close your eyes and relax for a bit.

This page has a list of all the eye twitch causes and how to treat them, check it out: http://eye-twitch.org/

It's actually called Blepharospasm which is a symptom of involuntary and uncontrollable movements in the muscles around a person's eyes which in turn make them appear like 'blinking non-stop' to other people. In certain cases, this may be caused by myasthenia (muscular weakness) in the eyes organ as a result of stresses, overstraining of the eyes, lacks of sleeps, the serious lacks of certain nutrients / minerals to support the normal functionings / movements of your eyelid muscles etc. Next, in the case whereby no stress, any kinds of infections, overstraining of the eyes etc are involved whilst the eyelids and the entire organs just look superficially normal and ok, and at the same time, the eyelid-twitching / eye-blinking just get 'unexplainedly' from bad to worse from time to time, such medical scenarios could actually be caused by other neuromuscular disorders which are much more complicated. And in terms of such neuromuscular disorders, they may arise as a neurological / Tardive Dyskinesia side effect of certain medications, especially the powerful mind-altering tranquilizers of antipsychotics / neuroleptics, particularly when such medications are over-relied on to the point of sheer abuse. In such a connection, please consider the following excerpts : - "Chlorpromazine (an antispychotic / neuroleptic) side effects Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Stop taking chlorpromazine and call your doctor at once if you have a serious side effect such as: twitching or uncontrollable movements of your eyes, lips, tongue, face, arms, or legs;" which are quoted from the website : http://www.drugs.com/mtm/chlorpromazine.html and, "Tardive dyskinesia is characterized by repetitive, involuntary, purposeless movements. Features of the disorder may include grimacing, tongue protrusion, lip smacking, puckering and pursing of the lips, and rapid eye blinking. Rapid movements of the extremities may also occur. Impaired movements of the fingers may also appear. For comparison, patients with Parkinson's disease have difficulty moving, while patients with tardive dyskinesia have difficulty not moving." quoted from : http://en.wikipedia.org/wiki/Tardive_dyskinesia Other Related Information : Details About The Acupuncture Technique (which involves 'He Gu' Acupuncture Point located on one's wrist) : http://www.curezone.com/forums/fm.asp?i=1233341#i Documented Medical Evidence For The Effectiveness of The Suggested Needleless Acupuncture Technique (A free-of-charge one) : http://www.medicalacupuncture.org/aama_marf/journal/vol14_1/poster1.html Further References For The 'He Gu' Acupuncture Point : http://www.acuxo.com/meridianPictures.asp?point=LI4&meridian=Large%20Intestine My Healing Experience From Risperdal-induced Non-stop Eyelid-twitching / Eye-blinking - In Full Details : http://brainmeta.com/forum/index.php?showtopic=18683 The Story Behind The Suggested Self-administered Acupuncture Technique For Abnormally Rapid Eyelid-twitching / Eye-blinking Described Above : http://www.curezone.com/forums/fm.asp?i=1386471#i Details About Botox Medications / Injections - which are actually medical derivatives from Clostridium botulinum bacterium (which causes botulism): http://www.answers.com/topic/botox http://www.curezone.com/forums/fm.asp?i=1260852#i http://www.curezone.com/forums/fm.asp?i=1422626#i Summary : http://silkwise.com/content/viewthread_thread,4243 Additional Information From Q & A sessions about Blepharospasm / Hemifacial Spasms : http://www.steadyhealth.com/Eyecare_Hemifacial_spasm___Risperdal_induced_Non_stop_Eyelid_twitching___My_Healing_Experience-t156617-0-asc-30.html

Eye Twitching, or Blepharospasm, is involuntary eyelid twitching. It is also referred to as an eye muscle spasm. The term blepharospasm really applies to any abnormal blinking or involuntary eye twitching of the eyelids caused by uncontrolled contractions of the muscles around the eyelids. Sometimes people experience the twitching under the eye and others may experience the twitching in their right eye or twitching in their left eye. In simple terms it is a blinking disorder. One type of blepharospasm, Benign Essential Blepharospasm or BEB is a blinking disorder that is not life threatening and has an unknown causes. eye twitching is believed to be caused by an abnormal functioning of certain nerve areas located at the base of the brain which control the coordination of muscle movements. In the majority of people it appears without any real known cause. Frequently, the signs and symptoms of dry eye occur right before or along with the appearance of eye twitching. Some research indicates that dry eye is a trigger for blepharospasm in those people who are may develop it. Occasionally eye twitching may run in families or be side effects of certain medications. Other common eye twitch causes include: * Stress * Irritation of the Cornea or Conjunctiva * Fatigue * Lack of sleep * Prolonged staring at a computer screen or television * Nervous system disorders As always,I would recommend that you consult your doctor to find the real cause of eye twitch.