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Eye Care Basics
Glaucoma
Causes
Glaucoma is a leading cause of blindness in the United States. It
typically affects people over the age of forty. The early signs
may occur when the passages that filter and exchange fluid from
within the eye become blocked, causing the internal eye pressure
to increase. Undiagnosed and untreated, this increased pressure
may cause permanent damage to the optic nerve. The chances of developing
glaucoma are increased when there is a family history of the disease,
or when an individual is of African descent, very nearsighted,
or has diabetes.
Symptoms
Glaucoma tends to develop gradually and without symptoms. If there
are symptoms, they may include minor blurring of vision, loss of
central or peripheral vision, the appearance of colored rings around
lights, and eye pain or dull headaches.
Diagnosis and Treatment
Glaucoma cannot be prevented, but it can, in most cases, be controlled.
A comprehensive eye exam can detect the onset of signs and symptoms
of glaucoma. Your eye care specialist will do further testing and
may prescribe medication to control the pressure inside the eye
or recommend other forms of treatment, including laser or conventional
surgery.
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