Cyclodiode Laser


Cyclodiode is a procedure used in the treatment of complex glaucoma and the procedure is most commonly used on eyes when other forms of glaucoma surgery would be difficult or likely to fail. Cyclodiode laser treatment works by placing small burns in a portion of the ciliary body, the structure that makes the aqueous fluid inside the eye. The cyclodestruction can reduce the amount of fluid produced and therefore reduce pressure inside the eye.

A tunnel vision view of a scenery of houses and landscape is what a person with advanced glaucoma would see
Tunnel vision in advanced, late-stage glaucoma.

What happens during the laser procedure?

The eye to be treated will be anaesthetised with local peribulbar anaesthetic and a speculum will be placed to hold the eyelids open. The diode laser probe will be applied to the surface of the eye just behind the limbal area and there will be beeping noise when the laser is being applied, with each beep representing one burn. The procedure lasts around 15 to 20 minutes. A steroid injection into the conjunctiva will be given and the eye will be covered with a pad on completion of the procedure.

Instructions after the laser

When the anaesthetic injection has worn off, the eye will have an aching feeling. It is advised that oral pain relief and rest be taken, preferably with the head slightly raised on a pillow. The eye pad can be removed the following day. It is common that eyelids may be swollen and the eye may be slightly red. If the eye is particularly painful or if you have any concerns, you should contact City Eye Centre on 07 3831 6888 as soon as possible.

While cyclodiode laser treatment is usually effective in lowering the pressure, multiple treatments may be required to achieve the desired effect and glaucoma medications often need to be continued. There are some uncommon risks associated with cyclodiode and they include inflammation, bleeding, perforation, retinal detachment, other eye sympathetic uveitis and loss of vision.