|Open angle glaucoma||
Glaucoma is an eye condition where the nerve at the back of the eye (the optic nerve) is damaged. This can lead to loss of vision.
Primary open angle glaucoma (also called chronic glaucoma) is the most common type. This develops slowly so that any damage to the nerve and loss of sight is gradual. The term 'open angle' refers to the angle between the iris and sclera which is normal.
Definition from Patient UK: Open angle glaucoma