The injured person was badly injured at the time, mainly with craniocerebral injury and skull base fracture, predominantly on the left side, causing left-sided actinic nerve injury, thus causing left-sided pupil dilatation and left-sided eyelid ptosis. It may also be accompanied by cerebral contusion and brain swelling, thus bringing about partial neurological dysfunction (speech function and memory dysfunction, etc.). Some neurotrophic drugs can be applied in the early stage, and hyperbaric oxygen chamber treatment can be performed after the condition is stabilized, which can help the recovery.