Fluids Hypertension Syndromes: Migraines, Headaches, Normal ...

Fluids Hypertension Syndromes – Dr. Leonardo Izecksohn – page 190
pressure. It also squeezes the superior and inferior Ophthalmic Veins in the orbit. These increased venous
blood pressures increase the Aqueous Humor secretion in the eye and difficult its drainage, and
cause glaucoma.
Behrouzi, Z and others, studying 182 eyes with Graves’ orbitopathy without steroids use, found that
20 of these eyes (11.0% from 182) presented raised intraocular pressure > 21 mmHg or open-angle
glaucoma, which is much higher than the 0.8% presented by the other people without the Grave’s orbitopathy.
They also found that in 10 of the eyes that developed Compressive Optic Neuropathy, which is
a very serious Optic Nerve’s squeezing, the intraocular pressure was high (>21 mmHg) in five out of
10 patients. They concluded, “The prevalence of eyes with Intraocular Pressure ≥21 mmHg was significantly
higher in Graves’ orbitopathy than in controls.”
Ohtsuka, K and Nakamura, Y. found similar results. From 104 consecutive Japanese patients with
Graves’ disease, 23 (22%) were diagnosed as having ocular hypertension, and 14 (13%) exhibited typical
glaucomatous visual field defects in the absence of compressive optic neuropathy. They concluded,
“The prevalence of normal-tension glaucoma as well as open-angle glaucoma and ocular hypertension
was significantly higher among patients with Graves’ disease than in the general population.”
This glaucoma must not be medicated as any other glaucoma: “The increased Intra-Ocular Pressure
in Graves' ophthalmopathy is caused … by elevated intraorbital pressure. The difference between
Intra-Ocular Pressure and venous outflow pressure must be