Glaucoma is unhealthy pressure inside the eye. Untreated, it can damage the optic nerve, causing vision loss and blindness.
Review Date 8/22/2022
Updated by: Franklin W. Lusby, MD, Ophthalmologist, Lusby Vision Institute, La Jolla, CA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.