In this episode, Optic Surgeon dives into eyelid twitch (myokymia), benign essential blepharospasm (BEB), and hemifacial spasm for ophthalmology residents and final-year MBBS students. Through a vivid clinical case, we clarify their distinct presentations, mechanisms, and causes—from benign, unilateral twitches tied to stress or dry eye to forceful bilateral spasms of BEB and unilateral facial spread in hemifacial spasm.