In the healthy eye a clear liquid called aqueous humor circulates inside the front portion of the eye. To maintain a
constant healthy eye pressure, your eye continually produces a small amount of aqueous humor and an equal amount of
this fluid flows out of the eye through a microscope drain called a trabecular meshwork in the drainage angle.
If you have glaucoma
the aqueous humor does not flow through the drainage angle properly. Fluid pressure in the eye increases and this extra
force presses on the optic nerve in the back of the eye causing damage to the
nerve fibers.