In angle-closure glaucoma, the fluid at the front of the eye cannot drain through the angle and leave the eye. The angle gets blocked by part of the iris. People with this type of glaucoma may have a sudden increase in eye pressure. Symptoms include severe pain and nausea, as well as redness of the eye and blurred vision. If you have these symptoms, you need to seek treatment immediately.
This is a medical emergency. If your doctor is unavailable, go to the nearest hospital or clinic. Without treatment to restore the flow of fluid, the eye can become blind. Usually, prompt laser surgery and medicines can clear the blockage, lower eye pressure, and protect vision.
For all of the NEI information on this topic, please visit the following webpage:
Facts About Glaucoma
For more information from other health sites, please visit the following webpages:
The Glaucoma Foundation, Angle-Closure Glaucoma
Glaucoma Research Foundation, Types of Glaucoma