[Ocular motility disturbances following frontal sinus operations (author's transl)].

160 patients were operated on due to injuries, inflammations or tumors of the frontal sinus. There occurred in 23.8% temporary and 8.1% permanent double vision. By synoptometric investigations the origin of these disturbances of the ocular motility was analysed and separated into several groups. Different reasons for the cause of the motility-disturbances are given, their prophylaxes and therapy are discussed. The consequence of these investigations is that the method of operation should be modified to an osteoplastic way.