Glaucoma is a group of diseases that are distinguished by an increase in pressure inside the eye, which causes damage to the optic nerve and to the retina.
Acute narrow angle glaucoma (also called angle closure glaucoma or narrow angle glaucoma) is one of the two basic categories of glaucoma. The other category is open angle glaucoma.
How does acute narrow angle glaucoma occur?
Acute narrow angle glaucoma occurs primarily in patients who have a shallow space between the cornea at the front of the eye and the colored iris that lies just behind the cornea. As the eye ages, the natural lens behind the pupil grows and the pupil becomes smaller, restricting the flow of fluid to the drainage site. Fluid can build up behind the iris, pushing it forward and blocking the channel (angle) that normally allows aqueous fluid to drain. If blockage happens, a rapid rise in intraocular pressure can occur.
How is this type of glaucoma treated?
The treatment for this type of glaucoma is known as a peripheral iridectomy. This is a laser procedure that creates a new opening in the iris to allow the aqueous fluid to move more easily to the drainage site. The peripheral iridectomy is usually performed in the doctor’s office and is generally performed on both eyes because the risk of developing the condition in both eyes is high.
Treatment takes 5 to 7 mins for both eyes.
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