Causes of throbbing in the corner of the left eye. Usually include physiological factors, eye diseases or neurological diseases. 1. Physiological factors: when due to insufficient sleep and rest, overwork, excessive tension and anxiety triggered by physical discomfort, it is possible to self-perception of the corner of the eye jumping, when the symptoms should be immediately strengthened rest, calm the mood, and the corner of the eye jumping phenomenon will slowly disappear. 2. Eye diseases or neurological diseases: some eye diseases and neurological diseases may lead to the corner of the eye old jump, including eye diseases such as conjunctivitis and severe myopia; when the peripheral nerves of the eye lesions can occur when the self-perception of the corner of the eye jumping, once found in a timely manner to the hospital for a clear examination of the cause of the disease. Excluding physiological factors leading to the left corner of the eye jumping, timely consultation, and follow the doctor’s instructions for treatment.