The exact cause of primary open-angle glaucoma, the disease’s most common form, is uncertain but factors that increase the glaucoma risk include:
- Age (Individuals over 40)
- Race (Hispanic & African American)
- Eye Trauma
- Long-term use of steroid medications
- Family history of glaucoma
- Elevated fluid pressure within the eye
Other forms of glaucoma, such as angle-closure, secondary glaucoma, and congenital glaucoma, occur in relation to specific physical causes. For example, with angle-closure glaucoma, the area through which the eye’s fluid normally drains (known as the angle) becomes blocked causing fluid and pressure to suddenly increase in the eye. With congenital glaucoma, patients are born with a defect in the eye’s angle, preventing the fluid from draining at a normal rate, causing eye pressure to increase. Both conditions are correctable with surgery.