A rarer condition that causes eye twitching is known as blepharospasm and involves “forceful, involuntary closure of both eyes at the same time,” Moss says. She notes that blepharospasm can range from ...

‌Hemifacial spasm is a disorder of the nerves and muscles that causes nonpainful involuntary twitching on one side of the face. Many people refer to hemifacial spasms as lip muscle spasms. Hemifacial ...