Glaucoma States. Both internationally and in the United States, glaucoma is the second-leading cause of blindness. Globally, cataracts are a more common cause. Glaucoma is also the leading cause of blindness in African Americans, who have higher rates of primary open-angle glaucoma. Bilateral vision loss can negatively affect mobility and interfere with driving. A meta-analysis published in 2009 found that people with primary open angle glaucoma do "not" have increased mortality rates, or increased risk of cardiovascular death. The association of elevated intraocular pressure (IOP) and the eye disease glaucoma was first described by Englishman Richard Bannister in 1622: "...that the
Heterogeneous condition Heterogeneous condition Heterogeneous medical condition in medicine are those medical conditions which have several etiologies, like hepatitis or diabetes. Medical conditions are normally defined pathologically (liver inflammation) or clinically (excessive urination) and not etiologically, and therefore it is normal to have more than one cause for them. The word is used as an opposition to homogeneous, meaning that given a group of patients, the disease is the same for all of them. When a condition is heterogeneous, it is normally divided in endotypes. An endotype is a subtype of a condition, which is defined by a distinct functional or pathobiological