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What Is Glaucoma Laser Iridotomy?

Glaucoma laser iridotomy uses a focused beam to create a tiny opening in the iris. This helps fluid move more freely inside the eye when the natural drainage route is narrow or blocked. The procedure is often used to prevent or manage angle-closure glaucoma. Doctors perform it quickly in a clinic setting. Pressure is checked before and after treatment.

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What Is Glaucoma Laser Iridotomy?

Glaucoma laser iridotomy uses a focused beam to create a tiny opening in the iris. This helps fluid move more freely inside the eye when the natural drainage route is narrow or blocked. The procedure is often used to prevent or manage angle-closure glaucoma. Doctors perform it quickly in a clinic setting. Pressure is checked before and after treatment.

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Why is laser iridotomy performed?

The goal is to open a pathway for fluid movement when pressure spikes or the angle is narrow. Exams identify people at risk for sudden closure. Doctors study iris structure and pressure behavior. Iridotomy helps reduce future episodes. Timing depends on exam findings.

What happens during laser iridotomy?

  • A numbing drop prepares the eye.
  • A laser creates a small opening in the iris.
  • Fluid begins moving through the new passage.
  • Doctors check pressure after the procedure.

How do doctors track results?

Pressure checks help confirm effectiveness. Follow-up visits assess the new iris channel. Some eyes need additional treatment. Doctors monitor angle stability over time. Patterns vary among individuals.

When Is Glaucoma Laser Iridotomy Usually Recommended?

Laser iridotomy is often recommended when an eye exam shows a narrow drainage angle or signs that the angle could close suddenly. Doctors also consider it if pressure spikes suggest fluid is getting trapped behind the iris. The procedure creates a small opening that helps balance pressure between the front and back of the eye. Even after treatment, follow-up visits matter since the angle and the opening need ongoing checks.

Frequently Asked Questions

Can the opening close over time?

It can narrow, especially in certain iris types. Exams help confirm patency. Additional treatment may be needed. Monitoring is important.

Does iridotomy treat all types of glaucoma?

No, it is used for angle-closure risk. Doctors decide based on angle structure. Other glaucoma types need different care. Exams define the approach.

Can vision blur temporarily afterward?

Some mild blur can occur. It usually clears with healing. Doctors explain what to expect. Patterns are individual.

Can both eyes need iridotomy?

Yes, many cases involve both eyes. Doctors plan timing carefully. The sequence depends on risk. Decisions follow exam findings.

References

Laser Peripheral Iridotomy. EyeWiki. https://eyewiki.org/Laser_Peripheral_Iridotomy. Date Accessed March 23, 2026.

Acute Angle-Closure Glaucoma. NCBI Bookshelf. https://www.ncbi.nlm.nih.gov/books/NBK430857/. Date Accessed March 23, 2026.

Lasers in Glaucoma. PubMed Central. https://pmc.ncbi.nlm.nih.gov/articles/PMC6213662/. Date Accessed March 23, 2026.

Laser Peripheral Iridotomy. Glaucoma Today. https://glaucomatoday.com/articles/2023-may-june/laser-peripheral-iridotomy. Date Accessed March 23, 2026.

Contemporary Approach to Narrow Angles. PubMed Central. https://pmc.ncbi.nlm.nih.gov/articles/PMC11022020/. Date Accessed March 23, 2026.