&NA;Papilledema is considered to be a result of raised intracranial pressure and other processes, in particular ischemia, and the role of optic nerve sheath decompression is significant in these disorders. The mode of action of this operation continues to provoke much debate and study of associated imaging and histological features. The visual consequences of traumatic optic neuropathy may now be amenable to therapeutic intervention, whether medical or surgical, but the natural history of this disorder remains poorly understood. Miscellaneous topics covered in this review include psychophysical testing in intracranial hypertension and many case reports of papilledema in unusual circumstances. During the review period, clinical articles abound but there is little experimental literature.Current Opinion in Ophthalmology 1993,4;VI:7‐15