Disease or Syndrome
glaucoma
glau·co·ma [ glaw-koh-muh, glou- ]
Subclass of:
Ocular Hypertension
Etymology:
Greek glaukos = gray + -oma = tumor or swelling
Hippocrates used this word to mean cataract, but later use changed its meaning to the results of an increase of intraocular tension.
Hippocrates used this word to mean cataract, but later use changed its meaning to the results of an increase of intraocular tension.
Definitions related to glaucoma:
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A condition in which the pressure inside the eye is too high, causing eye damage.Harvard Dictionary of Health TermsHarvard Medical Publishing, 2011
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A condition in which there is a build-up of fluid in the eye, which presses on the retina and the optic nerve. The retina is the layer of nerve tissue inside the eye that senses light and sends images along the optic nerve to the brain. Glaucoma can damage the optic nerve and cause loss of vision or blindness.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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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)NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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Glaucoma is a group of diseases that can damage the eye's optic nerve. It is a leading cause of blindness in the United States. It usually happens when the fluid pressure inside the eyes slowly rises, damaging the optic nerve. Often there are no symptoms at first. Without treatment, people with glaucoma will slowly lose their peripheral, or side vision. They seem to be looking through a tunnel. Over time, straight-ahead vision may decrease until no vision remains. A comprehensive eye exam can tell if you have glaucoma. People at risk should get eye exams at least every two years. They include African Americans over age 40; People over age 60, especially Mexican Americans; People with a family history of glaucoma. There is no cure, but glaucoma can usually be controlled. Early treatment can help protect your eyes against vision loss. Treatments usually include prescription eyedrops and/or surgery. NIH: National Eye InstituteMedlinePlusU.S. National Library of Medicine, 2021
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Glaucoma refers loss of retinal ganglion cells in a characteristic pattern of optic neuropathy usually associated with increased intraocular pressure.Human Phenotype Ontology (HPO)The Human Phenotype Ontology Project, 2021
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Group of diseases characterized by increased intraocular pressure resulting in damage to the optic nerve and retinal nerve fibers.CRISP ThesaurusNational Institutes of Health, 2006
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Increased pressure in the eyeball due to obstruction of the outflow of aqueous humor.NCI ThesaurusU.S. National Cancer Institute, 2021
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Optic nerve damage secondary to increased intraocular pressure.NICHD Pediatric TerminologyU.S. National Cancer Institute, 2021
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A disorder characterized by an increase in pressure in the eyeball due to obstruction of the aqueous humor outflow.Common Terminology Criteria for Adverse EventsU.S. National Institutes of Health, 2021
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Glaucomas are a group of eye disorders characterized by progressive optic nerve damage in which an important part is a relative increase in intraocular pressure (IOP) that can lead to irreversible loss of vision.Merck & Co., Inc., 2020
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Glaucoma is a group of eye conditions that damage the optic nerve, the health of which is vital for good vision. This damage is often caused by an abnormally high pressure in your eye.Mayo Foundation for Medical Education and Research
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Glaucoma, disease caused by an increase in pressure within the eye as a result of blockage of the flow of aqueous humour, a watery fluid produced by the ciliary body. (The ciliary body is a ring of tissue directly behind the outer rim of the iris; besides being the source of aqueous humour, it...Encyclopedia Britannica, Inc., 2020
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