Glaucoma is a condition that damages the optic nerve (the cable that connects the eye to the brain). This disease tends to run in families and occurs later in life. Glaucoma is caused by a buildup of pressure inside the eye.
The increased pressure in your eye can damage your optic nerve, which sends images to your brain. If the damage worsens, glaucoma can cause permanent vision loss or even total blindness within a few years. Most people with glaucoma have no early signs or symptoms. Visit your eye doctor regularly so they can diagnose and treat glaucoma before you have long-term vision loss.