Glaucoma is a group of eye diseases that gradually steals sight without warning and often without symptoms.
Vision loss is caused by damage to the optic nerve.
This nerve acts like an electric cable containing over a million wires and is responsible for carrying the images we see to the brain. Glaucoma is a chronic disease. It must be treated for life. To date, its causes are not well understood and there is no cure. A cataract is an eye condition where cloudiness, or opacity in the lens, blocks or changes the entry of light, affecting vision.