Walsh & Hoyt: Anomalous Disc Elevation without Either Visible or Buried Drusen

Not all anomalously elevated optic discs develop drusen. As noted above, the morning glory syndrome is associated with disc elevation; the superotemporal portion of a tilted optic disc is usually elevated; and dysplastic discs may show some degree of elevation. In addition, hypoplastic discs may have some elevation that seems out of proportion to the size of the disc. Such discs are often described as crowded to distinguish them from discs that are truly swollen. In addition, vitreopapillary traction can produce optic disc elevation. B-scan ultrasonography and optical coherence tomography allow confirmation of vitreopapillary traction.