Glaucoma is an eye condition. It occurs when pressure of the fluid inside the eyeball becomes too high. This can cause permanent damage to eyesight. A painful form (acute closed-angle glaucoma) can start suddenly in middle age or later, with abnormal vision, pain and vomiting. More common is a painless form (chronic open-angle glaucoma) affecting both eyes but with no symptoms until there is often severe permanent impairment of vision. Prevention of this is by regular screening of people with known increased risk of glaucoma (people with relatives with glaucoma, people who are short-sighted (myopic), and people with certain diseases) and older people. Once it is known that the eye pressure (intraoccular pressure) is too high, treatment, usually with regular eye drops, can lower the pressure and prevent further damage to eyesight.
Glaucoma does not normally cause death except by the visual impairment contributing to accidents, but these are counted separately within Accidents U149 Map 474. However it is a common cause of blindness.
Glaucoma caused 0.0002% of all deaths worldwide in 2002, an average of 2 deaths per 100 million people per year.