Commonly known as the left eye jumping for money and the right eye jumping for disaster, it refers to the use of nerve movements of the left and right eyes to predict good or bad luck.

However, experts believe that there is no scientific basis for the argument that the left eye jumps over the money and the right eye jumps over the disaster, and medical staff also say that this is related to health.

Eyelid jump is a popular saying, and the professional saying is "eyelid spasm".