Vascular obstruction (1993) - glaucoma cause
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Between 1980 and 1991 an eye doctor collected data about open angle glaucoma. This data was analyzed with a view to identifying disc haemorrhages and retinal vein occlusions. Disc haemorrhages can occur in patients without glacuoma, but in patients with glaucoma the condition is indicative of likely progression of the condition. Similarly incidence of retinal vein occlusions is a risk factor glaucoma and can occur in patients who already have glaucoma.
The researchers found a connection between the three, which in all categories, increased with duration.
It was felt that mixed incidents suggested that the haemorrhages and occlusions were manifestations of the same vascular disease, the only difference being the size of the blood artery or vein.
The researchers concluded that the various vascular obstructions damaged ability of the tissues to pick up nutrition and therefore might be the primary cause of glaucoma.
Published: Sonnsjo & Krakau, Acta Ophthalmol (Copenh) 1993 Aug;71(4):433-44