why is my under eye twitching

The most common reasons for under-eye twitching include stress, fatigue or lack of sleep, caffeine intake, alcohol consumption, eye strain (especially from digital screens), dry eyes, and environmental irritants like bright light or wind. Twitching can also be caused by irritation of the eye surface or inner eyelids. Less commonly, persistent or severe eye twitching can be linked to neurological disorders such as Bell's palsy, multiple sclerosis, Parkinson's disease, or other movement disorders, but these are rare and usually come with other symptoms. If your under-eye twitching lasts more than a couple of weeks, involves other parts of your face, or causes your eyelid to close completely, it is advisable to see a healthcare professional for further evaluation. Otherwise, improving sleep, reducing caffeine and alcohol, managing stress, and reducing eye strain often help stop the twitching.