News tagged with glaucoma

Related topics: risk factors · eye

Early screenings key to diagnosing glaucoma

New research is emphasizing the importance of regular screenings for glaucoma, a disease that deteriorates the optic nerve over time and is a leading cause of irreversible blindness worldwide. The onset of glaucoma is associated ...

May 17, 2013
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Court: California cities can ban pot shops

(AP)—The California Supreme Court ruled Monday that cities and counties can ban medical marijuana dispensaries, a ruling likely to further diminish the state's once-extravagant network of storefront pot shops and fuel efforts ...

May 06, 2013
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Hallucinations of musical notation

Professor of neurology, physician, and author Oliver Sacks M.D. has outlined case studies of hallucinations of musical notation, and commented on the neural basis of such hallucinations, in a new paper for the neurology journal ...

Apr 04, 2013
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New view of origins of eye diseases

Using new technology and new approaches, researchers at Lund University in Sweden hope to be able to explain why people suffer vision loss in eye diseases such as retinal detachment and glaucoma.

Apr 03, 2013
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NIH urges dilated eye exams to detect glaucoma

The National Eye Institute (NEI), a part of the National Institutes of Health, observes Glaucoma Awareness Month each January by encouraging Americans at higher risk for glaucoma to schedule a comprehensive dilated eye exam ...

Jan 15, 2013
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Glaucoma

Glaucoma refers to a group of diseases that affect the optic nerve and involves a loss of retinal ganglion cells in a characteristic pattern. It is a type of optic neuropathy. Raised intraocular pressure is a significant risk factor for developing glaucoma (above 22 mmHg or 2.9 kPa). One person may develop nerve damage at a relatively low pressure, while another person may have high eye pressure for years and yet never develop damage. Untreated glaucoma leads to permanent damage of the optic nerve and resultant visual field loss, which can progress to blindness.

Glaucoma can be divided roughly into two main categories, "open angle" and "closed angle" glaucoma. Angle closure can appear suddenly and is often painful. Visual loss can progress quickly but the discomfort often leads patients to seek medical attention before permanent damage occurs. Open angle, chronic glaucoma tends to progress more slowly and the patient may not notice that they have lost vision until the disease has progressed significantly.

Glaucoma has been nicknamed the "sneak thief of sight" because the loss of vision normally occurs gradually over a long period of time and is often only recognized when the disease is quite advanced. Once lost, this damaged visual field can never be recovered. Worldwide, it is the second leading cause of blindness. Glaucoma affects one in two hundred people aged fifty and younger, and one in ten over the age of eighty. If the condition is detected early enough it is possible to arrest the development or slow the progression with medical and surgical means.

This text uses material from Wikipedia, licensed under CC BY-SA

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