why does my eye keep twitching

The most common reasons for eye twitching include stress, fatigue or lack of sleep, caffeine intake, alcohol consumption, and eye strain or irritation. Eye twitching is usually caused by involuntary spasms of eyelid muscles and is often harmless. Other triggers can be dry eyes, allergies, bright lights, or environmental factors like wind or air pollution. Sometimes, persistent twitching can indicate more serious conditions affecting the nervous system, but this is rare. Usually, twitching resolves on its own after addressing these triggers.