Glaucoma: Cyclodestructive Procedures - Topic Overview
procedure is a type of surgery used to destroy the ciliary body, the part of the eye that produces
fluid (aqueous humor). It may be used to treat severe glaucoma that has not
improved after other types of treatment or surgery have been tried. Some people need this treatment done more than once.
In laser cyclophotocoagulation, a laser beam is used to destroy the
ciliary body. For this procedure, medicine to numb the eye is injected behind
the eyeball (retrobulbar anesthesia) before the procedure.
most, but not all, people who have laser cyclophotocoagulation, the pressure in
their eyes decreases to their
Complications of laser cyclophotocoagulation may include:
- Cloudiness of eyesight.
- Bleeding from
- Inflammation of the area of the eye
- Pain (may be severe).
- Shrinkage of the
eyeball (hypotony) due to the decrease in pressure in the eye. This may lead to
clouding of the lens (cataract).
Laser cyclodestructive procedures may cause less pain than other
cyclodestructive procedures used to destroy the ciliary body.
In cyclocryotherapy, an extremely cold instrument (probe) is
repeatedly applied to the sclera, the white part of the eye . The probe destroys
the ciliary body, the part of the eye that produces fluid.
Usually medicine to numb the eye is injected behind the eyeball
before the procedure. After the procedure, the
pressure in the eye may briefly rise. The person may have moderate to severe
pain after this procedure.
Cyclocryotherapy may be
used to treat:
Complications of cyclocryotherapy may include:
- A sudden increase in eye
- Shrinkage of the eyeball (hypotony)
due to the decrease in pressure in the eye. This may lead to clouding of
the lens (cataract).
Because it can cause loss of central vision, which is needed to read
and see details clearly, cyclocryotherapy is not usually used for people who
have relatively good central vision.