Instead, the fluid builds up and causes increased pressure in the eye. The increased pressure in the eye destroys the nerve cells in your eye, causing you to lose your vision. At first, you may have blind spots only in your peripheral, or side, vision. If your glaucoma isn't treated, your central vision will also be affected. When glaucoma causes vision loss, the loss is permanent.
Nothing can restore dead nerve cells.
Most people with glaucoma don't have any symptoms of the disease. You might not realize that you're losing vision until it's too late. Half of all people with loss of vision caused by glaucoma are not aware they have the disease. By the time they notice loss of vision, the eye damage is severe. Rarely, an individual will have an acute attack of glaucoma.