Glaucoma is a group of diseases characterized by pathological increase in intraocular pressure that causes damage to the optic nerve and visual field defects. The treatment for glaucoma can include conservative management and surgical interventions. The primary goal of treatment is to control intraocular pressure and delay the progression of optic nerve damage. Generally, intraocular pressure can be controlled with medication; if medication fails to control the pressure, surgery may be necessary to manage it.