Lagophthalmos, this word comes from Greek language which “Lagos,” means rabbit,” and “ophtalmos,” means eye, in this case people believe that rabbits sleep with their eyes open. The primary cause of lagophthalmos is facial nerve paralysis which can cause paralytic lagophthalmos to occur. In comparison, facial nerve paralysis happens to 30-40 per 100.000 people in the United States. Th…