Glaucoma: What you need to know

https://magazine.medlineplus.gov/article/glaucoma-what-you-need-to-know Glaucoma is the name for a group of diseases that can damage the optic nerve in the eye. Glaucoma usually happens when the fluid pressure inside the eyes slowly rises and increases pressure inside the eye. About 3 million Americans have glaucoma, and it’s the second-leading cause of blindness worldwide.