A person is diagnosed w/ glaucoma when there is evidence of optic nerve damage. There are several different types of
glaucoma, normal tension, primary open
angle,
closed angle, and also secondary glaucoma.
The most common type of glaucoma is primary open angle glaucoma. It is treated first w/ medications (eye drops), then if medications alone do not stop its progression other treatments may be used.
Once optic nerve damage is detected it is irreversible.