Causes of Glaucoma:
Origin and Causes of Glaucoma
note: the following article discusses cataract eye surgery. Here at H&B we
recommend natural approaches and urge you to look into alternatives before choosing
surgery or taking powerful drugs with potentially dangerous side effects.
is currently believed to be the final product of optic nerve damage numerous structural
and systemic diseases characterized by high pressure within the eye. This pressure
can damage and even destroy the sensitive nerve cells in the rear of the eye,
causing loss of sight.
association of glaucoma with increased pressure in the eye is oft attributed to
Richard Banister, an English oculist and author of the first book on ophthalmology
in the English language, who made this observation in 1622. Banister observed
that if you felt an eye with glaucoma by rubbing on the eyelids, the eye felt
more hard and solid than normal.
is not a modern disease. The ancient Greeks coined the term glaucoma, which they
used to describe all eye diseases that lead to blindness. In the first several
centuries A.D., cataracts, which can be treated, started to be distinguished from
glaucoma, which could not be amended.
a diagnosis of glaucoma is based on three factors: signs of damage to the optic
nerve; intraocular pressure (IOF), the pressure within the eye, which is typically
elevated; and characteristic changes in the visual field, specifically a loss
of peripheral vision. Very often the first sign that glaucoma may be present is
an increase in IOP.
the 1930s, opthamologists have distinguished between two primary forms of the
disease: narrow-angle glaucoma and open-angle. These names were based on the width
of the angle formed by the meeting of the iris and the cornea. Grades I and II
glaucoma (glaucoma in the presence of 10-degree and 20-degree angles, respectively)
were designated narrow-angle glaucoma; grades III and IV glaucoma (30-degree and
40-degree angles, respectively) were termed open-angle glaucoma.
glaucoma is divided into a number of different categories, with the most common
type being primary open-angle glaucoma.
other glaucomas that make up the open-angle family are variously called structural
or secondary, or glaucoma as an end product of a disease.
a ngle-closure glaucoma (glaucoma caused by a narrow angle and/or close proximity
of structures within the eye to each other) is usually considered a structural
Today researchers have recorded more than a dozen distinct forms of glaucoma,
and there are likely more. Some scientists claim they can differentiate between
as many as 40 different varieties of glaucoma.
primary open-angle glaucoma accounts for the majority of cases of glaucoma, people
can have other forms. As the differences among glaucomas become clearer, and the
root causes are better identified, researchers may be able to develop better and
more specified treatments for controlling each individual type.
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