Glaucoma is a disease causing progressive damage to the optic nerve. Nerve tissue is lost over time, causing loss of vision. A symptom of glaucoma is tunnel vision, but is only experienced at late stages of the disease. Usually, there are no symptoms, and glaucoma is referred to as the silent robber of vision. Diagnosis of glaucoma is made through careful examination of the eye and optic nerves. Advanced technology at Eye Clinic North, such as high resolution retinal imaging, assists the doctor in diagnosing glaucoma and monitoring the effectiveness of treatment. Treatment of glaucoma usually begins by taking one eye drop per day. Anyone with a family history of glaucoma or high eye pressures should get regular eye exams.