YAG or diode cyclophotocoagulation uses laser energy to reduce the eye’s fluid-producing tissue, lowering pressure in difficult glaucoma. It is often considered when other treatments have not controlled the disease well enough.
When this treatment is used
Cyclophotocoagulation is typically reserved for advanced or complex cases. It can be applied externally or from within the eye.
- Useful when previous surgeries or drops have failed or are unsuitable
- Considered for eyes with poor visual potential mainly for pain relief
- Newer, gentler protocols may be used earlier in selected patients
- May be repeated if pressure reduction is not sufficient at first
Expected results and risks
The aim is to lower pressure enough to slow damage or reduce discomfort. Effects build over weeks after treatment.
- Pressure can fall significantly but results vary between individuals
- Pain, inflammation, or temporary vision changes may occur
- Excessive treatment can lead to very low pressure and eye shrinkage, so dosing is cautious
- Ongoing monitoring ensures pressure stays in a safe range
