Alzheimer's disease & dementia

Does glaucoma affect cognitive function?

Previous studies have looked for links between glaucoma—a neurodegenerative disorder that's the leading cause of irreversible blindness—and cognitive function, but they've generated mixed results. Findings from a large ...

Genetics

Stem cell research reveals detailed genetic roadmap of glaucoma

A new, detailed genetic roadmap of glaucoma—the world's leading cause of irreversible blindness—will help researchers develop new drugs to combat the disease, by identifying potential target areas to stall or reverse ...

Ophthalmology

Using deep learning to predict the vision of glaucoma patients

Research from a team including the Crabb Lab at City, University of London has used "deep learning" (DL), which is a type of artificial intelligence (AI), on thousands of images of the backs of the eyes of glaucoma patients ...

Psychology & Psychiatry

Focus on childhood glaucoma caregivers

Even with more advanced treatments and early intervention, caregivers of young people living with childhood glaucoma face profound challenges with no cure or way to reverse the damage—and always facing the prospect of their ...

Ophthalmology

Consumer Health: Treating glaucoma

January is National Glaucoma Awareness Month, which makes this a good time to learn more about treating this group of eye conditions.

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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