Stypandra imbricata ("blindgrass") toxicosis in goats and sheep - clinical and pathologic findings in 4 field cases.

Two goats and 2 sheep from field outbreaks of Stypandra imbricata toxicosis had severe lesions in the retina, optic nerves and white matter of the central nervous system. Clinical, ophthalmoscopic, fluorescein angiographic, electroretinographic and histologic atrophy, necrosis and degeneration of axons in the optic nerves and optic tracts and status spongiosus of cerebral white matter.