Sudden transient pinprick pain in the eye may be caused by foreign body, neuralgia, etc. 1. Foreign bodies: foreign bodies such as shed eyelashes and dust particles enter the conjunctiva and stimulate the nerves of the eye, which will occur, while the eye will secrete tears to flush the foreign body to the outside of the eyelid, so there may be a transient pinprick-like pain. 2. Neuralgia: There are many reasons, which may be caused by viral infections and so on, resulting in transient pinprick pain. It is usually a throbbing or stabbing pain that can stop suddenly or recur. Transient pins and needles pain in the eyes may also be caused by other reasons, and it is recommended to consult a doctor if necessary, and follow the doctor’s instructions for treatment.