J Korean Ophthalmol Soc.
1997 Feb;38(2):320-324.
A Case of Partial Evulsion of Optic Nerve Associated with Retinal Tear
- Affiliations
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- 1Department of Ophthalmology, college of Medicine, Soonchunhyang University Hospital, Korea.
Abstract
- Optic nerve evulsion is a rare case acused by severe blunt trauma, penetrating injury or a relatively minor blow with a tear of the lamina cribrosa and a sheared optic nerve axon. It is thought to result from a retropulsed optic disc by direct penetrating orbital injury, a sudden increased intraocular pressure, or a extreme rotation and forward dislocation of the globe. The authors introduce a tear of nerve fiber at inferotemporal optic disc and papillomacular bundle fiber at superotemporal retina accompanied with vitreous hemorrhage in a 24-year old man who was struck in the left eye with a bamboo knife. We report a funduscopic finding, visual field defect, VEP, CT finding. And We assume that the lesion was caused by a extreme rotation and forward dislocation of the globe instead of a sudden increased intraocular pressure.
