[Decompression of the optic nerve].

A case of a traumatic opticus lesion with frontobasal and temporal fracture was operated within the first two hours following the trauma. The vision was completely restituted. Interesting was the change of the pupil during the operation so that the amaurotic wide pupil was getting narrow similar to the uninjured one. In accordance with the further improvement, this observation was qualified as a sign of restitution. This case was selected from a series of 17 opticus decompressions.