Glaucoma is a group of eye diseases that develop due to elevated intra-ocular pressure (IOP) within the eye. The increased pressure affects the optic nerve and may cause vision loss. Glaucoma is classified either as open-angle (the more common form that is usually painless) or angle-closure glaucoma (which often occurs suddenly and is associated with pain and redness of the eye).
In the early phases of glaucoma there are often no symptoms. By the time vision is affected, the damage is permanent. Progression of glaucoma can be slowed or halted with eye drops, laser treatments, or surgery so early diagnosis is key.
People with a family history of glaucoma, the elderly, and African-Americans are at increased risk of the disease.
