• Model experiments and mathematical analysis of intraocular pressure and blood flow show that as venous pressure is increased there is a rapidly increasing tendency for intraocular veins to collapse. Vein collapse slows blood flow markedly. We propose that the visual field loss in glaucoma secondary to elevated venous pressure is associated with intraocular vein collapse and retardation of intraocular blood flow.
Moses RA, Grodzki WJ. Mechanism of Glaucoma Secondary to Increased Venous Pressure. Arch Ophthalmol. 1985;103(11):1701–1703. doi:10.1001/archopht.1985.01050110095034
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