Prevalence and Incidence of Open-angle glaucoma
Prevalance of Open-angle glaucoma:
about 3 million Americans, many not yet diagnosed. ... see also overview of Open-angle glaucoma.
approx 1 in 90 or 1.10% or 3 million people in USA [Source statistic for calcuation: "about 3 million Americans, many not yet diagnosed." -- see also general information about data sources]
Undiagnosed prevalence of Open-angle glaucoma:
1 to 1.5 million (about half of 3 million Americans) ... see also misdiagnosis of Open-angle glaucoma.
Undiagnosed prevalence rate:
approx 1 in 272 or 0.37% or 1 million people in USA [about data] ... Note: this rate calculation uses the following statistic: 1 to 1.5 million (about half of 3 million Americans)
About prevalence and incidence statistics:
The term 'prevalence' of Open-angle glaucoma usually refers to the estimated population
of people who are managing Open-angle glaucoma at any given time.
The term 'incidence' of Open-angle glaucoma refers to the annual diagnosis rate,
or the number of new cases of Open-angle glaucoma diagnosed each year.
Hence, these two statistics types can differ:
a short-lived disease like flu can have high annual incidence but low prevalence,
but a life-long disease like diabetes has a low annual incidence but high prevalence.
For more information see about prevalence and incidence statistics.