Glaucoma is a pressure increase on the inside of the eye. The eye has different chambers, each one with its own fluids. These fluids are in constant exchange. But if the eye forms too much liquid or fails to clear the excess, it will build up and increase intraocular pressure. That is what happens in glaucoma, and many patients have this problem without realizing it.

The problem with glaucoma is that an increase in intraocular pressure creates slow damage to the optic nerve in the long run. If your optic nerve is affected, you will have a permanent loss of vision.