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  • Title: Four cases of traumatic optic nerve blindness in the horse.
    Author: Martin L, Kaswan R, Chapman W.
    Journal: Equine Vet J; 1986 Mar; 18(2):133-7. PubMed ID: 3698952.
    Abstract:
    Traumatic optic nerve atrophy is characterised clinically by a unilateral or bilateral sudden onset of blindness. Dilated, fixed pupils and a lack of a menace reflex are the only abnormalities noted soon after the trauma. Within three to four weeks the optic disc becomes paler and the retinal vasculature is markedly decreased. The pathological lesion is a rupture of the nerve axons from stretching forces produced by the posterior movement of the brain against the fixed canalicular portion of the optic nerves. Medical therapy has not been successful.
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