Elevated intraocular (eye) pressure that cannot be lowered with eyedrops can only be lowered by surgery. The aim in a glaucoma surgery is to stop glaucomatous harm on the optic nerve by lowering intraocular pressure.
Any obstruction or narrowing in drainage of aquous humor causes intraocular pressure to rise. Eyedrops and laser are used to dercrease production of aquous humor and facilitation of drainage.
A new drainage tunnel for aquous humor is created in surgery. The operation is made with local anestesia usually but in some cases general anestesia is required. The eye is dressed after surgery and antibiotic eyedrops are prescribed, the patient is called for control the day after. Complications like bleeding and infection occur with a rate of %1.
The aim of surgery is to prevent further visual loss and to protect the left visual acquity, so no visual gain is expected. Transient visual loss may be encountered after surgery, it gets back to its old stag 1 month after. Glaucoma eyedrops can be used after surgery.