What’s Causing Your Eyelid Twitch?

By Katherine Lee | Medically reviewed by Lindsey Marcellin, MD, MPH
Excess caffeine, lack of sleep, and stress — these are a few reasons why your eyelids may be twitching. And while a twitch here and there is generally harmless, some twitching should prompt you to see your eye doctor.
What’s going on when your eyelid starts twitching? Called fasciculation, this symptom is actually pretty common — and it can affect the upper eyelids, involve muscles in the lower eyelids, or both.
The twitch may happen in one or both eyes and can occur spontaneously and uncontrollably. And once it starts, it can continue off and on for several days (or longer!) and then disappear.
Things That Make Eyelids Twitch
Eye doctors are not sure what causes eyelids to twitch, but they believe it may often be related to stress and fatigue. In some cases, the cause of a twitching eye condition may never be identified.
“The most common causes of twitching eye include stress, lack of sleep, and excess caffeine,” says Alberto Martinez, MD, an ophthalmologist in Bethesda, Md., and a spokesperson for the American Academy of Ophthalmology. Other causes can include:
Eye irritation
Eye strain
Dry eye
read more: http://www.everydayhealth.com/vision-center/whats-causing-your-twitch.aspx
source: Everyday Health
Image: From Wikimedia Commons, the free media repository