If you've been diagnosed with glaucoma, you may be surprised to know that treatment is available for 90% of cases. Early detection and treatment are critical to preserving your vision. In the front part of the eye, a fluid called aqueous humor circulates, nourishing, and cleansing the eye's tissues. It then drains through the trabecular meshwork to the brain. In the later stages, however, the pressure in the eye may rise to the point of vision loss.

Many treatments for glaucoma are…