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Early detection and treatment by a doctor your eye is the key to prevent damage to the optic nerve and glaucoma blindness. Glaucoma is causing vision loss in the United States, especially for the elderly. However, vision loss can often be prevented with early treatment. Glaucoma is a group of eye diseases that can cause irreversible vision loss through damage to the optic nerve (a special collection of nerve fibers send impulses to the brain's visual). When there is damage to the optic nerve fibers, blind spots develop. These blind spots are usually detected until the optic nerve were significantly damaged. If the nerves around the destroyed causing the eyes are blind.
Some of the test have demonstrated the benefits of reducing intraocular pressure through medication, surgery, or some combination to help prevent glaucoma. Typically, the aqueous humor can leave the eye where the cornea and iris meet. Sometimes a drainage system is not working properly, allows aqueous humor to collect. This causes excess pressure in the eye and can damage the optic nerve. Usually, a clear liquid called aqueous humor circulates within the front part of the eye. To maintain a healthy level of pressure in the eye, a small amount of this fluid is constantly produced while an equal amount flows out of the eye through a sieve-like system, called the trabecular meshwork.
Loss of vision may also result from blockages of small blood vessels that feed the retina and the optic nerve. Nerve fibers in the outer edge is usually affected first, so that the vision loss begins with peripheral vision and gradually close in to the cells that supply the central vision is lost. The damage that occurs in glaucoma irreversibly but often can be prevented if detected early. Glaucoma, this drainage system becomes less efficient, slow down or impede the flow of fluid. The liquid is then back in the eye, such as the water in the sink is clogged, and the internal pressure increases. This, in turn, put pressure on the optic nerve, which provides cable eye to the brain. If the pressure continues, the nerve fibers that carry optical messages begin to die, and vision began to fade.