Glaucoma refers to a group of eye diseases that have a common features including eye pressure too high for the health of the eye, damage to the optic nerve and possible permanent loss of sight.

Besides optic nerve damage, the second part of glaucoma’s definition is that it involves risk of losing side vision (your visual field). Fortunately it is the central vision that is lost last in most cases. Unfortunately there are usually no symptoms and therefore the majority of people with glaucoma do not know that they have glaucoma. Therefore finding and treating glaucoma early on is very important.