News tagged with glaucoma

Related topics: risk factors · eye

Fighting blindness with technology

The eye disease glaucoma leads to blindness and has no symptoms in the early stages, earning it the nickname "silent thief of sight". Regular eye examinations are essential for early detection and diagnosis of such eye diseases. ...

Jul 11, 2013
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Can a contact lens help treat glaucoma?

While an undergraduate in biochemistry at McMaster, Michelle Fernandes worked as a researcher for a biotech company. Now a master's candidate in chemical engineering, she credits that co-op work experience with sparking her ...

Jun 28, 2013
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Glaucoma drug can cause droopy eyelids

Prostaglandin analogues (PGAs), drugs which lower intraocular pressure, are often the first line of treatment for people with glaucoma, but their use is not without risks. PGAs have long been associated with blurred vision, ...

May 21, 2013
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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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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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