Types of Glaucoma
There are several kinds of glaucoma. The most common form of glaucoma is called open-angle glaucoma. The drainage angle is open in these patients, but the eye fluid does not drain as quickly as it should.
Narrow-angle glaucoma occurs when the drainage angle closes, and almost no eye fluid can escape. Narrow-angle glaucoma is an emergency and must be treated immediately.
In the early stages of open-angle glaucoma, there is no pain or noticeable changes in vision. Early detection, which can be made during a routine eye exam, is the key to the prevention of vision damage.