glaucoma

American  

[glaw-koh-muh, glou-] / glɔˈkoʊ mə, glaʊ- /

noun

1. Ophthalmology. abnormally high fluid pressure in the eye, most commonly caused either by blockage of the channel through which aqueous humor drains open-angle glaucoma, or chronic glaucoma or by pressure of the iris against the lens, which traps the aqueous humor angle-closure glaucoma, or acute glaucoma.

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glaucoma British  

/ ɡlɔːˈkəʊmə /

noun

1. a disease of the eye in which pressure within the eyeball damages the optic disc, impairing vision, sometimes progressing to blindness

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glaucoma Scientific  

/ glou-kō′mə,glô- /

1. A disease of the eye in which the pressure of fluid inside the eyeball is abnormally high, caused by obstructed outflow of the fluid. The increased pressure can damage the optic nerve and lead to partial or complete loss of vision.

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glaucoma Cultural  

1. A disease of the eye marked by increased fluid pressure in the eyeball. Glaucoma can damage the optic nerve and may result in blindness if not treated. Surgery may be required for severe cases.

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Other Word Forms

Derived Forms

• glaucomatous
  adjective

Etymology

Origin of glaucoma

First recorded in 1635–45; Latin glaucōma, from Greek glaúkōma “opacity of the eye lens, cataract”; see origin at glauco-, -oma (cataracts and glaucoma were not clearly distinguished until the early 18th century)

Explanation

Glaucoma is a serious eye condition that can lead to blindness if it's not treated. It's much more common for elderly people to develop glaucoma than younger people. Glaucoma is usually caused by fluid building up in the eye and increasing the pressure on the optic nerve. Although glaucoma causes a lot of the blindness in people older than 60, it's almost always treatable if it's diagnosed early enough. The word glaucoma comes from the Greek glaukoma, "opacity of the lens," from the root glaukommatos, "gray-eyed."

Example Sentences

Glaucoma is the leading cause of irreversible blindness around the globe, affecting up to 44 million people.

From Science Daily • Jan. 18, 2024

Glaucoma is the leading cause of blindness worldwide, with its most common form affecting 44 million people.

From Science Magazine • Jan. 18, 2024

Glaucoma is a condition that attacks the optic nerve.

From Washington Post • Jan. 7, 2022

Glaucoma is the second leading cause of blindness worldwide and half a million people in the UK alone have it.

From BBC • Nov. 16, 2021

Glaucoma is probably not so much an increase of tension as a loss of balance between intra-ocular tension and nutritional activity.

From Glaucoma A Symposium Presented at a Meeting of the Chicago Ophthalmological Society, November 17, 1913 by Nance, Willis O.