ABSTRACT
Two cases of traumatic optic neuropathy presented with profound loss of vision. Both cases received a course of intravenous corticosteroids elsewhere but did not improve. They underwent Navigation guided optic canal decompression via external transcaruncular approach, following which both cases showed visual improvement. Postoperative Visual Evoked Potential and optical coherence technology of Retinal nerve fibre layer showed improvement. These case reports emphasize on the role of stereotactic navigation technology for optic canal decompression in cases of traumatic optic neuropathy.
ABSTRACT
We investigated the efficacy of high dose corticosteroid therapy in the treatment of traumatic optic-neuropathy. We experimentally damaged the optic nerves of six white rabbits with a Hartman mosquito. Three of the rabbits were intravenously injected with 0.25mg/kg dexamethasone every six hours for a 48 hour period. The others were used as controls. In both groups, the optic nerves were removed after one month and stained with Hematoxyline-eosin, then examined microscopically. No histological differences were found in either the control or the experimental group.