Picture of Glaucoma
Glaucoma can steadily cause a loss of sight by affecting the optic nerve. Glaucoma increases intraocular pressure (IOP). There are two kinds of glaucoma: open-angle, caused by conditions that are chronic or long-term and closed angle (angle closure), which is the kind that occurs suddenly. People who are elderly, African-American, and those who have blood relatives who suffer from the condition are at greatest risk. Glaucoma does not produce symptoms in the early stages. When an affected individual notices vision changes, treatment may stop further vision loss but it cannot reverse existing vision loss. Glaucoma is treated with prescription eyedrops. Occasionally, laser and surgical procedures may be employed. Early diagnosis and treatment can help preserve vision in people affected by glaucoma.
Text Reference: National Eye Institute: “Facts About Glaucoma”