twitch (someone's) eye

Translations
подергивать (чей-то) глаз
Her eye would twitch whenever she was stressed.
Ее глаз подергивался, когда она была в стрессе.
Definitions
To twitch someone's eye refers to an involuntary movement or spasm of the eyelid, often caused by stress, fatigue, or irritation. It can also imply a sudden, brief movement that draws attention or indicates surprise.