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Bilateral traumatic optic nerve avulsion in a Thoroughbred gelding |
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| Authors: | A Kullmann J V Marteniuk M R Williams S J Holcombe F M Mowat T P Mullaney |
| Institution: | 1. Department of Large Animal Clinical Sciences, Michigan State University, , East Lansing, USA;2. Department of Small Animal Clinical Sciences, Ophthalmology Service, Michigan State University, , East Lansing, USA;3. Diagnostic Center for Population and Animal Health, College of Veterinary Medicine, Michigan State University, , East Lansing, USA |
| Abstract: | This report describes an unusual case of acute blindness following traumatic head injury in a mature horse. The horse fell over backwards and subsequently presented with bilateral blindness and epistaxis. Vision did not return following medical supportive therapy and euthanasia was elected. Post mortem findings revealed a basisphenoid fracture and bilateral optic nerve avulsion rostral to the optic chiasm, an uncommon presentation of traumatic blindness not previously reported in the horse. |
| Keywords: | horse blindness head trauma optic nerve avulsion basisphenoid fracture |