Surgery is another way to treat glaucoma. In general, any kind of surgery carries some risk, so other treatment methods are generally explored first. However, glaucoma surgery is successful for many patients.
Surgery is the main treatment method for angle-closure glaucoma and congenital glaucoma, because it may be the only way that the blocked or incorrectly formed drainage canals can be opened.
In cases of chronic glaucoma, surgery is usually considered when medications are not controlling your eye pressure or when you cannot tolerate the side effects of the medicines.