| Abstract: | After a short introduction to the method used in the Royal Dutch Eye Hospital in Utrecht, for B-scan ultrasonography with Coleman's apparatus, the normal echo pattern of the optic nerve and a number of abnormalities are considered. Excavation or prominence of the disc can be established, even when the media are opaque. In retrobulbar neuritis, certain anomalies in the echo pattern are found in a high percentage of cases, as one of the few objective changes in this condition. Leber's optic atrophy appears to give a typical echo pattern. The echographic pictures of a glioma of the optic nerve and of displacement of the optic nerve, probably due to a metastasis from a cutaneous melanoma, are described. |
