According to NHS.UK, in England, about 480,000 people have chronic open-angle glaucoma. Among white Europeans, about 1 in 50 people above 40 years old and 1 in 10 people above 75 years old has chronic open-angle glaucoma. It may be more common among people of black-African or black-Caribbean origins.
The other types of glaucoma are much less common. Among white people, acute angleclosure glaucoma may affect about 1 in 1,000 people. It is more common among people of Asian origin, affecting around 1 in 100 of them. This article gives an overview of the condition and highlights related 2009 - 10 HES data.