Ultrastructural changes in laminar optic nerve capillaries of Beagles with primary open-angle glaucoma
1989
Brooks, D.E. | Samuelson, D.A. | Gelatt, K.N.
Ultrastructural examination of optic nerve capillaries in the canine lamina cribrosa revealed many spherical, membrane-bound, electron-dense inclusions that closely resembled Weibel-Palade bodies, in pericytes and endothelial cells of preglaucomatous, early, moderately, and advanced affected Beagles with hereditary primary open-angle glaucoma. This ultrastructural difference between the laminar capillary endothelial cells of normal and glaucomatous Beagles could represent a functional vascular disorder, because Weibel-Palade bodies are associated with microcirculatory abnormalities.
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