Nearly everyone has experienced a twitching eyelid at some point in their lives. An eyelid twitch can be an annoying experience, but luckily it is almost always a harmless occurrence and is rarely noticeable to anyone else. Eyelid twitching, known medically as myokomia, is a spasm of the eyelid muscles and may have several different causes and triggers. Identifying and understanding the cause of your twitching eyelid can help prevent this annoying experience from reoccurring. Continue reading to learn more about common underlying causes of myokomia and how to avoid future instances of eyelid twitching.