SCEI Logo Hollywood Presbyterian Hospital Logo (CHA)

  Primary Open Angle Glaucoma

Glaucoma is an eye disease in which the main nerve (the optic nerve) connecting each eye to the brain undergoes progressive deterioration in a characteristic way. Deterioration of the optic nerve leads to slow, progressive loss of peripheral (side) and central vision.


  • Since glaucoma is a slow, painless process, most patients do not know they have the disease until advanced vision loss has occurred. Once vision is lost from glaucoma, it cannot be restored.
  • A diagnosis of glaucoma may be based on the appearance of the optic nerve, testing of the peripheral field of vision, and/or computerized imaging of optic nerve fibers.


The only known treatment for glaucoma is lowering internal eye pressure with either medication or, in more advanced cases, surgery. Lowering of eye pressure decreases the risk of further loss of vision due to glaucoma but does not restore vision that has already been lost.

This disorder damages the optic nerve at the rear of the eye, causing loss of vision. It can progress so gradually that the person doesn't notice until significant damage has occurred.

  Narrow Angle Glaucoma

Narrow angle glaucoma results from a blockage of the internal drainage channel of the eye. This may result in a sudden elevation of internal eye pressure leading to permanent optic nerve damage within hours. Or eye pressure may slowly rise over several years, causing progressive optic nerve damage. Some people are at risk based on their eye structure.

This disorder damages the optic nerve at the rear of the eye, causing rapid loss of vision. It can strike suddenly and progress quickly.

  Sudden-onset narrow angle glaucoma


  • Eye pain
  • Eye redness
  • Blurred vision with haloes
  • Nausea/vomiting

  Chronic narrow angle glaucoma

  • A slow loss of peripheral and central vision often goes unnoticed until advanced vision loss has occurred.


Laser peripheral iridotomy (LPI) is a procedure in which a tiny microscopic opening is made in the iris so internal eye pressure is lowered.

  Secondary Glaucoma

A group of eye disorders are common causes of secondary glaucoma including pigment dispersion (pigment in the iris flakes off and blocks eye drainage), pseudoexfoliation (flaking of the outer layer of the lens in the eye), eye injury, neovascularization (abnormal blood vessel formation), eye inflammation and prior eye surgery.


The signs and symptoms of secondary glaucoma differ based on the specific underlying disorder. In some types of secondary glaucoma such as neovascular glaucoma, vision loss and pain may occur suddenly. In other types of secondary glaucoma such as pseudoexfoliative and pigmentary glaucomas, vision loss may occur in a slow, painless manner.


The treatment of secondary glaucoma varies based on the exact cause but usually includes medications, laser surgery or standard surgery.


Glaucoma Laser Treatment: CPC

This outpatient procedure is designed to reduce excess fluid pressure in the eye caused by glaucoma. It does this by reducing the production of aqueous humor, a clear fluid in the eye.