Eye twitching is usually caused by fatigue, stress, excessive amounts of tobacco, alcohol, caffeine and a few other factors. But even doctors aren’t sure about the exact reason for what causes eye twitching.

Eye twitching can be caused by a variety of allergens, including inflammation and dry eyes. Eye twitching can sometimes be a symptom of a more serious and severe neurological problem such as blepharospasm (abnormal blinking or spasm of the eyelids) or amyotrophic lateral sclerosis (ALS), better known as Lou Gehrig’s disease.

According to statistics, only about 2000 occurrences of blepharospasm occur in the United States each year, and women are more likely than men to get it in their mid-to-late adult years.

Blepharospasm is not a dangerous condition if caught early. As the illness worsens, you may become more sensitive to light, experience hazy vision, and your entire face may begin to quiver.

It’s not something to be concerned about if the eye twitching lasts for a few minutes. If it lasts longer than an hour, though, you should see a doctor. We recommend that you see a doctor as soon as possible if you suffer any of the symptoms listed below.

The upper eyelid starts drooping. Twitching causes the eyelid to close completely. Eyes start to swell and you get red eyes or notice eye discharge.
Experience spasms on your entire face.

If the condition is more serious then your doctor will redirect you to a neurologist or other specialists. It is highly important that you get a detailed checkup to make sure there is no neurological disorder.