What Is an Upper Lid Twitch?
An upper lid twitch is a brief, involuntary spasm of the eyelid muscle, often caused by fatigue, stress, or caffeine. The twitch usually affects one eye and feels like a flutter that comes and goes. Episodes can last for seconds or minutes and are typically harmless. In most cases, rest and reduced eye strain stop the spasms. Persistent or painful twitches may signal an underlying condition needing attention.
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