What is Glaucoma?
Glaucoma affects the optic nerve which is found at the back of the eye. The optic nerve sends visual information from the eye to the brain, allowing us to see (similar to the way the cable cord of a television transmits pictures from the cable box to the television screen).
In glaucoma, the pressure inside the eyeball is high enough to cause damage to the optic nerve. Similar to high blood pressure, patients usually do not “feel” the pressure in the eye. Glaucoma is often referred to as the “silent thief of sight,” as visual impairment begins in the periphery and progresses slowly. As the condition progresses, more nerve cells are damaged and the field of vision narrows. If left unchecked, this process can lead to complete blindness.