---
title: Yag laser iridotomy
description: "YAG laser iridotomy is a clinic procedure that creates a tiny opening in the coloured part of the eye to improve fluid flow and reduce the risk of angle closure glaucoma. ## Why this laser is recommended In some eyes…"
url: "https://bluefinvision.com/knowledge-base/topics/treatments-procedures/yag-laser-iridotomy/"
updated: "2025-12-19"
category: "Treatments & Procedures"
---

# Yag laser iridotomy

YAG laser iridotomy is a clinic procedure that creates a tiny opening in the coloured part of the eye to improve fluid flow and reduce the risk of angle closure glaucoma.

## Why this laser is recommended

In some eyes the drainage angle between the iris and cornea is narrow, so fluid struggles to escape and pressure can rise suddenly. A small laser made opening allows fluid to move more freely from behind the iris to the front of the eye.

- Often advised when you have narrow angles or a history of angle closure attacks
- Usually performed with numbing drops at a laser machine
- Both eyes may be treated if they share the same narrow anatomy
- The opening is too small to notice in everyday life

## During and after the procedure

You sit at a machine similar to a standard eye examination while the laser delivers brief pulses. Afterwards, pressure is checked and anti inflammatory drops are used for a few days.

- Vision may be slightly blurred and light sensitive for a short time
- Mild discomfort or headache can occur and usually settles quickly
- Regular follow up ensures the opening stays clear and pressure remains safe
- Seek urgent help if you develop severe pain, redness, or sudden vision loss later