Glaucoma is an eye disease that gradually steals your vision. Usually, glaucoma has no symptoms in its early stages. Without proper treatment, glaucoma can lead to blindness. But with regular eye exams, early detection and treatment, you can preserve your sight.

The inner pressure of the eye (intraocular pressure or IOP) is dependent on the balance between production and drainage of aqueous fluid in the eye. If your eye’s drainage system is working properly, then fluid can drain freely out and prevent a build-up. Likewise, if your eye’s fluid system is working properly, then the right amount of fluid can be produced. Your IOP can vary during the day, but normally stays within a manageable range.