Research topic: glaucoma

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glaucoma. (Image by Rakesh Ahuja, MD, CC)

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glaucoma

The Columbia Encyclopedia, Sixth Edition
glaucoma , ocular disorder characterized by pressure within the eyeball caused by an excessive amount of aqueous humor (the fluid substance filling the eyeball). This causes pressure against the optic nerve and compression of the blood vessels of the eye—the resulting impairment of vision ranges from slight abnormalities to total blindness. Chronic open-angle glaucoma is the result of impeded drainage of aqueous humor. In acute angle-closure glaucoma, the anterior chamber of the eye is shallower and the iris may obstruct the meshwork at the entrance of the canal of Schlemm. Although glaucoma... Read more
Glaucoma
GLAUCOMA DEFINITION Glaucoma is a disorder of the eye in which the optic nerve is damaged. The...carries light messages from the eye to the brain. Left untreated, glaucoma can result in loss of vision. DESCRIPTION Over two million people... Read more
Glaucoma
Glaucoma Glaucoma (glaw-KO-ma) is a group of disorders that cause fluid pressure to rise...small chamber at the front of the eyeball. The problem for people with glaucoma is that the drainage out of the eye is blocked or not working properly... Read more

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