what can cause an eye twitch
Various conditions that affect the brain and central nervous system can also cause eye twitching, including stroke, dystonia, tardive (slow or belated onset) dyskinesia, Touretteâs syndrome, and Aicardi syndrome (rare organic brain disorder acquired in early childhood).
The most common known causes of eye twitching include fatigue, stress, anxiety, and excessive caffeine intake. Eye twitching may appear in response to irritation caused by smoke, dust, or a foreign body in the eye. Allergies and infections may cause irritation that leads to twitching.
Experts believe that the eyelid twitching of blepharospasm is caused by the misfiring of certain cells in one area of the brain. Eyelid twitches may be aggravated by having dry eyes. They may also be worsened by stress, lack of sleep, caffeine, and harsh light conditions.