Definitions for glaucoma
glɔˈkoʊ mə, glaʊ-glau·co·ma

Princeton's WordNetRate this definition:0.0 / 0 votes

1. glaucomanoun

   an eye disease that damages the optic nerve and impairs vision (sometimes progressing to blindness)

   "contrary to popular belief, glaucoma is not always caused by elevated intraocular pressure"

WiktionaryRate this definition:0.0 / 0 votes

1. glaucomanoun

   An eye disease or disorder that is defined as a characteristic optic neuropathy, or disease of the optic nerve, possibly, if untreated, leading to damage of the optic disc of the eye and resultant visual field loss due to lack of communication between the retina and the brain, which can lead to blindness.

2. Etymology: Borrowed from Classical Greek γλαύκωμα, derived from γλαυκός

Samuel Johnson's DictionaryRate this definition:0.0 / 0 votes

1. Glaucomanoun

   A fault in the eye, which changes the crystalline humour into a greyish colour, without detriment of sight, and therein differs from what is commonly understood by suffusion. John Quincy

   Etymology: γλαύϰωμα; glaucome, French.

   The glaucoma is no other disease than the cataract. Samuel Sharp.

WikipediaRate this definition:0.0 / 0 votes

1. Glaucoma

   Glaucoma is a group of eye diseases that result in damage to the optic nerve (or retina) and cause vision loss. The most common type is open-angle (wide angle, chronic simple) glaucoma, in which the drainage angle for fluid within the eye remains open, with less common types including closed-angle (narrow angle, acute congestive) glaucoma and normal-tension glaucoma. Open-angle glaucoma develops slowly over time and there is no pain. Peripheral vision may begin to decrease, followed by central vision, resulting in blindness if not treated. Closed-angle glaucoma can present gradually or suddenly. The sudden presentation may involve severe eye pain, blurred vision, mid-dilated pupil, redness of the eye, and nausea. Vision loss from glaucoma, once it has occurred, is permanent. Eyes affected by glaucoma are referred to as being glaucomatous. Risk factors for glaucoma include increasing age, high pressure in the eye, a family history of glaucoma, and use of steroid medication. For eye pressures, a value of 21 mmHg or 2.8 kPa above atmospheric pressure (760 mmHg) is often used, with higher pressures leading to a greater risk. However, some may have high eye pressure for years and never develop damage. Conversely, optic nerve damage may occur with normal pressure, known as normal-tension glaucoma. The mechanism of open-angle glaucoma is believed to be the slow exit of aqueous humor through the trabecular meshwork, while in closed-angle glaucoma the iris blocks the trabecular meshwork. Diagnosis is achieved by performing a dilated eye examination. Often, the optic nerve shows an abnormal amount of cupping.If treated early, it is possible to slow or stop the progression of disease with medication, laser treatment, or surgery. The goal of these treatments is to decrease eye pressure. A number of different classes of glaucoma medication are available. Laser treatments may be effective in both open-angle and closed-angle glaucoma. A number of types of glaucoma surgeries may be used in people who do not respond sufficiently to other measures. Treatment of closed-angle glaucoma is a medical emergency.About 70 million people have glaucoma globally, with about two million patients in the United States. It is the leading cause of blindness in African Americans. It occurs more commonly among older people, and closed-angle glaucoma is more common in women. Glaucoma has been called the "silent thief of sight", because the loss of vision usually occurs slowly over a long period of time. Worldwide, glaucoma is the second-leading cause of blindness after cataracts. Cataracts caused 51% of blindness in 2010, while glaucoma caused 8%. The word "glaucoma" is from the Ancient Greek glaukos, which means "shimmering." In English, the word was used as early as 1587 but did not become commonly used until after 1850, when the development of the ophthalmoscope allowed doctors to see the optic nerve damage.

ChatGPTRate this definition:0.0 / 0 votes

1. glaucoma

   Glaucoma is a group of eye conditions that damage the optic nerve, which is crucial for good vision. This damage is often caused by abnormally high pressure in the eye and can lead to blindness if not treated early. It can affect people of all ages but is most common in older adults.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Glaucomanoun

   dimness or abolition of sight, with a diminution of transparency, a bluish or greenish tinge of the refracting media of the eye, and a hard inelastic condition of the eyeball, with marked increase of tension within the eyeball

2. Etymology: [L., fr. Gr. glay`kwma, fr. glayko`s light gray, blue gray.]

WikidataRate this definition:0.0 / 0 votes

1. Glaucoma

   Glaucoma is a term describing a group of ocular disorders with multi-factorial etiology united by a clinically characteristic intraocular pressure-associated optic neuropathy. This can permanently damage vision in the affected eye and lead to blindness if left untreated. It is normally associated with increased fluid pressure in the eye. The term "ocular hypertension" is used for people with consistently raised intraocular pressure without any associated optic nerve damage. Conversely, the term 'normal tension' or 'low tension' glaucoma is used for those with optic nerve damage and associated visual field loss, but normal or low IOP. The nerve damage involves loss of retinal ganglion cells in a characteristic pattern. The many different subtypes of glaucoma can all be considered to be a type of optic neuropathy. Raised intraocular pressure is the most important and only modifiable risk factor for glaucoma. However, some may have high eye pressure for years and never develop damage, while others can develop nerve damage at a relatively low pressure. Untreated glaucoma can lead to permanent damage of the optic nerve and resultant visual field loss, which over time can progress to blindness.

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Glaucoma

   glawk-&#x#x14D;′ma, n. an insidious disease of the eye, marked by increased tension within the eyeball, growing dimness of vision, and an excavation of the papilla of the optic nerve—also Glaucō′sis.—adj. Glaucom′atous. [See Glaucous.]

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Glaucoma

   An ocular disease, occurring in many forms, having as its primary characteristics an unstable or a sustained increase in the intraocular pressure which the eye cannot withstand without damage to its structure or impairment of its function. The consequences of the increased pressure may be manifested in a variety of symptoms, depending upon type and severity, such as excavation of the optic disk, hardness of the eyeball, corneal anesthesia, reduced visual acuity, seeing of colored halos around lights, disturbed dark adaptation, visual field defects, and headaches. (Dictionary of Visual Science, 4th ed)

Matched Categories

1. • Eye Disease

How to pronounce glaucoma?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say glaucoma in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of glaucoma in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of glaucoma in Pythagorean Numerology is: 1

Examples of glaucoma in a Sentence

1. Tal Raviv:

   I think what's great about the iStent is it's the first in a whole line of products which is going to fundamentally change the way we treat glaucoma. This is just the first tool we have in this country … we can just bypass the blockage and avoid years of eye drops which have cost and side effects to the patients.

2. Tom Spetalnick:

   Eye care patients tend to think that an eye exam is just a measurement for glasses, and that is a real important test, because people want to see well out of their glasses. But it's a fairly small part of an overall comprehensive eye examination and has no impact, or very little impact, on assessing the health of the eye, there is a standard of care when an eye doctor is expected to perform an eye exam and the eye exam is expected to determine if the patient does or doesn't have things like glaucoma, retina problems, even diabetes can be detected.

3. Shreya Prabhu:

   The benefit is, in congenital glaucoma, they can have severe vision loss if it is not treated early, the later it’s diagnosed, the more ground you’ve lost.

4. Saj Khan:

   If that happens significantly enough, for long enough, it's how patients develop glaucoma.

5. Marc Werner:

   There are many eye diseases that can cause loss of vision (glaucoma, macular degeneration), or loss of life (ocular melanoma), which may have no signs or symptoms but can be detected during a thorough eye exam.

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=glaucoma
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Glaucoma
3. ^ Samuel Johnson's Dictionary
   https://johnsonsdictionaryonline.com/views/search.php?term=glaucoma
4. ^ Wikipedia
   https://en.wikipedia.org/wiki/Glaucoma
5. ^ ChatGPT
   https://chat.openai.com
6. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/glaucoma
7. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=glaucoma
8. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=glaucoma