Diabetes

CDC assesses burden of eye disorders in adults with diabetes

(HealthDay)—Eye disorders frequently affect adults aged 45 years and older with diagnosed diabetes, and disorders are more common for those with diagnosed diabetes for 10 years or more, according to a July data brief published ...

Ophthalmology

Potassium balance and glaucoma

Retinal ganglion cells (RGCs) make up the optic nerve. When RGCs degenerate due to elevated intraocular pressure caused by glaucoma, vision is lost.

Ophthalmology

Machine learning about glaucoma

Untreated glaucoma is a major cause of sight loss. There are several forms and they are all essentially caused by damage to the optic nerve due to increased pressure within the eye. A collaboration between scientists in Algeria ...

Ophthalmology

Long-term statin use associated with lower glaucoma risk

A new study brings the connection between statin use and risk of glaucoma into sharper focus. Investigators from Brigham and Women's Hospital have found that using statins for five or more years is associated with lower risk ...

Medical research

The first tomography map for diagnosing glaucoma

Pablo Amil, a researcher from the research group in Nonlinear Dynamics, Nonlinear Optics and Lasers (DNOLL) at the ESEIAAT, has created an objective model that classifies the degrees of the iridocorneal angle, a key element ...

Ophthalmology

Our tears could one day tell us if we have glaucoma

Contrary to what many of us think, high pressure inside the eye does not define glaucoma and investigators want to know if the proteins circulating in the fluid of our eyes might.

Medical research

Researcher seeks early detection to forestall glaucoma's ravages

Glaucoma is the leading cause of blindness in the U.S. and worldwide. More than 3 million Americans suffer from the eye disease. If caught and treated early, its progression can be significantly slowed, but the disease often ...

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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.

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