Primary angle closure glaucoma
There are a number of conditions that are closely related to primary angle closure:
Primary angle closure suspect – This is when tests show that the drainage channel in your eye is narrow and is at high risk of closing up at any time. This is more common in people with smaller shaped eyes where the iris is naturally closer to the cornea.
Acute angle closure – Primary angle closure is usually painless and occasionally causes symptoms of mild headaches. However, if the drainage channel suddenly closes and the pressure suddenly becomes very high, the signs and symptoms are usually severe. This is called acute angle closure.
What are the signs and symptoms of acute angle closure?
- intense pain of the eye
- sore or tender eye area
- headache
- redness of the eye
- blurred and reduced vision
- seeing coloured haloes around lights
What should I do if I am experiencing any of these symptoms?
If you are experiencing any of these symptoms, you should seek medical advice as soon as possible.
What treatment is available for primary angle closure?
The two main treatment options are laser peripheral iridotomy and cataract extraction surgery.
Laser peripheral iridotomy
In this procedure, a laser beam is used to create a small hole in the iris. This provides another route for the fluid to flow and pushes the iris backwards, in turn helping to open the drainage channel. For more information on this procedure, please read the laser peripheral iridotomy information sheet. If you do not have a copy of this leaflet, please ask at the reception or doctor caring for you.
Cataract surgery
Both procedures are effective in the treatment of primary angle closure. Your doctor will discuss with you the treatment that is best for you.
You may be prescribed glaucoma medication in the form of drops and/or tablets, which should be taken daily to control your eye pressures until the day of your procedure.
Your eye pressures may remain high even after the procedure. In these instances, drops may be needed to lower the eye pressures forever.
