---
title: YAG cyclophotocoagulation for glaucoma
description: "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…"
url: "https://bluefinvision.com/knowledge-base/topics/treatments-procedures/yag-cyclophotocoagulation-for-glaucoma/"
updated: "2025-12-15"
category: "Treatments & Procedures"
---

# YAG cyclophotocoagulation for glaucoma

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