Glaucoma is a disease of the major nerve of vision, called the optic nerve.
The optic nerve receives light-generated nerve impulses from the retina and transmits these to the brain, where we recognize those electrical signals as vision. Glaucoma is characterized by a particular pattern of progressive damage to the optic nerve that generally begins with a subtle loss of side vision (peripheral vision). If glaucoma is not diagnosed and treated, it can progress to loss of central vision and blindness. The main objective in treating glaucoma is to lower intraocular pressure (IOP) in the eye. A lower IOP can reduce damage to the optic nerve and save your remaining vision. Glaucoma eye drops often are the first choice over glaucoma surgery and can be very effective at controlling IOP to prevent eye damage.