The Science of Eye Twitching: Eyelid Myokymia 👀 #usa

Added: 2026-04-29

Eye twitching (eyelid myokymia) is a common, usually harmless condition caused by involuntary contractions of the orbicularis oculi muscle, often triggered by factors such as caffeine consumption, lack of sleep, digital eye strain, and magnesium deficiency, which cause the muscle fibers to become hyperexcitable and misfire.