Certain ethnic races, particularly those of African descent.Higher-than-normal intraocular pressure.Risk factors for Chronic Open-Angle Glaucoma Include: If left untreated, it eventually develops to blindness. As the disease becomes more advanced, blank spots begin to appear in one’s vision. Peripheral vision is usually the first to deteriorate. There are no symptoms in the early stages of open-angle glaucoma. With this type of glaucoma, pressure gradually increases around the eye, causing it to work less effectively over a period of time. Chronic Open-Angle GlaucomaĬhronic open-angle glaucoma is the most common form of the disease and usually develops with age. The two most common types are chronic open-angle glaucoma and closed-angle glaucoma. There are several different types of glaucoma. When normal drainage becomes slowed or blocked, pressure increases and may lead to glaucoma. A healthy eye will continually produce small amounts of aqueous humor to ensure consistent pressure within the eye. The front of the eye is constantly producing a fluid called aqueous humor. Optic nerve damage results in loss of vision and, ultimately, blindness. When this pressure rises to abnormal levels, it can put extra stress on the optic nerve, causing significant damage. Every eye maintains a certain amount of internal pressure, called intraocular pressure. Glaucoma is a disease that affects the optic nerve, the part of the eye which receives images collected by the retina and sends them to the brain.
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