YAG Iridotomy
What is YAG Iridotomy?
This laser procedure creates a tiny opening in your iris, the colored part of your eye. This opening enables fluid to drain properly, preventing dangerous pressure increases associated with angle-closure glaucoma.
Using a focused YAG laser beam, your ophthalmologist precisely targets the iris without making any cuts on your skin. The laser creates a microscopic hole that acts like a new doorway, allowing eye fluid to bypass any blockage and restore normal flow. This helps keep the pressure in your eye at a safe and stable level.
This treatment is for patients with anatomical narrow angles, where the drainage space between the iris and cornea is reduced. About 1 in 50 people over age 40 have this condition, which puts them at risk for angle-closure glaucoma. Your eye doctor can identify this during a regular eye exam, allowing for preventive treatment before an emergency occurs.
Patients with the following characteristics are more likely to have narrow angles and benefit from a YAG iridotomy:
- Hyperopia, or farsightedness, due to a naturally crowded eye structure
- Age over 40, with risk increasing with each decade
- A family history of angle-closure glaucoma
- Asian, Southeast Asian, or Inuit ethnic backgrounds
- Having experienced an acute angle-closure episode in one eye
Unlike cataract surgery, which replaces the eye's natural lens, YAG iridotomy only addresses the iris anatomy. It is also different from daily eye drops that lower pressure temporarily, as the laser provides a long-lasting anatomical fix. The laser is very precise and often helps you avoid more invasive surgery later.
Why Choose YAG Iridotomy?
This proven treatment is recommended when your eye's anatomy places you at risk for a sudden and severe glaucoma attack. It is a first-line preventive therapy supported by decades of clinical research confirming its safety and effectiveness.
The primary benefit is preventing an acute angle-closure glaucoma attack, a medical emergency that can cause permanent blindness within hours. Research shows that YAG iridotomy is highly effective at preventing this risk. The treatment also helps prevent the intense pain, nausea, and blurred vision that come with a sudden attack, giving you peace of mind.
Your eye doctor at ReFocus Eye Health Avon will recommend YAG iridotomy if they find narrow angles during your eye exam. The treatment is also performed promptly if you have already had a glaucoma attack in one eye to protect your other eye. Getting treated early gives you the best chance of keeping your vision healthy for life.
In some situations, this procedure may not be the best option. This includes patients with:
- Poor corneal clarity or active eye inflammation that may limit laser access
- Advanced optic nerve damage that requires more aggressive surgical options
- Certain iris conditions, such as severe atrophy or very thick, dark tissue
For patients who are not suitable for laser treatment, pilocarpine eye drops can temporarily help open the drainage angle. In advanced cases or if laser treatment is not effective, a surgical iridectomy, which involves removing a small piece of the iris, may be needed. In some patients, cataract surgery itself can relieve the blockage and open the angle.
How the Procedure is Done
YAG iridotomy is a straightforward outpatient procedure performed in our office at ReFocus Eye Health Avon or at a nearby surgical facility. The entire process, including preparation and recovery, usually takes less than an hour, and you can go home the same day.
Your doctor will apply numbing eye drops so you will not feel pain. They may also use drops to make your pupil smaller, which helps the laser work better. You must plan to have someone drive you home, as your vision will be blurry for a few hours. Bringing sunglasses will help with light sensitivity afterward.
You will sit at a special microscope called a slit lamp while your doctor places a small contact lens on your eye to help focus the laser beam. The laser creates the tiny hole with just a few quick pulses that last only seconds. You might hear clicking sounds or see bright flashes of light, but most people say it does not hurt.
Immediately after treatment, your vision will likely be blurry and your eyes may feel sensitive to light. Your doctor will prescribe anti-inflammatory eye drops to prevent swelling and help your eye heal. Most patients can return to normal activities the next day, but you should follow these recovery milestones:
- First 24 hours: Avoid rubbing your eyes, heavy lifting, or strenuous exercise. Use your prescribed drops and wear sunglasses as needed.
- First week: Attend your follow-up visit to ensure the opening is working correctly and your eye pressure is stable.
- First month: Continue with any follow-up visits as recommended by your doctor to monitor the healing process.
Potential Risks and Side Effects
YAG iridotomy is very safe, but like all medical procedures, there are some potential risks. Most side effects are mild, temporary, and resolve quickly with proper care.
Your eyes might be red, watery, or sensitive to light for a day or two after treatment. Some people have mild eye discomfort or feel like something is in their eye. Blurry vision is common right after the procedure but usually clears up within hours. These are normal signs that your eye is healing.
Sometimes, the pressure in your eye might go up temporarily after the laser treatment, which your doctor can treat with medicine. A small amount of bleeding where the laser was used can occur but almost always stops on its own. In about 1 to 5 out of every 100 people, the tiny hole may close over time and need to be reopened with another treatment. Some patients have reported seeing glare, shadows, or ghost images after the procedure, though this is not common.
Following all your doctor's instructions before and after treatment is the best way to avoid problems. Go to all your follow-up appointments so your doctor can check how you are healing. Call our office right away if you have severe pain, sudden vision changes, or if your eye stays very red for more than a few days.
Frequently Asked Questions
Here are answers to common questions patients have about the YAG iridotomy procedure, its recovery, and its role in protecting long-term eye health.
No, the numbing drops make sure you do not feel pain during the procedure. You might notice some pressure or see bright flashes, but most people say it is much easier than they expected. Any mild discomfort afterward usually goes away within a few hours.
Recovery is typically swift, with most people feeling back to normal within one to two days. You should avoid heavy lifting and strenuous exercise for about 24 hours. While you will feel better quickly, it takes several weeks for your eye to heal completely inside.
If one eye has narrow angles, the other eye usually does too due to similar anatomy. To prevent future problems, your doctor will examine both eyes carefully and will often recommend treating both eyes, sometimes on the same day or a few weeks apart.
YAG iridotomy helps prevent or treat angle-closure glaucoma, but it does not cure other forms of glaucoma or reverse damage that has already occurred. Think of this treatment as an important step in managing your eye health for life, not a one-time cure.
You cannot tell at home if you have narrow angles because they usually do not cause symptoms until a serious problem happens. Your eye doctor can see this during a comprehensive eye exam using a special lens in a procedure called gonioscopy. During your routine eye exam at ReFocus Eye Health Avon, our team routinely screens for this condition.
No, the laser creates the opening at the very edge of your iris, where it is usually covered by your upper eyelid. The hole is also extremely small and does not change how your eye looks to other people or affect your eye color.
If you are at high risk and do not get treatment, you could have a sudden glaucoma attack. This causes severe eye pain, headache, nausea, and blurred vision. Without emergency treatment, you could lose your sight permanently in a matter of hours.
No. You should arrange for someone to drive you home because your vision will be blurry and your eyes will be sensitive to light from the dilating drops. Most people feel comfortable driving again by the next day once their vision clears.
Some people can stop using daily pressure-lowering drops after a successful iridotomy, while others still need them. This depends on your overall eye health and whether you have other types of glaucoma. Your doctor will monitor your eye pressure and let you know what is right for you.
The cost of the procedure varies depending on your location and insurance coverage. It is typically covered by insurance plans, including Medicare, when deemed medically necessary to prevent glaucoma. Our staff at ReFocus Eye Health Avon can help you understand your coverage and any potential out-of-pocket expenses.
In most people, the tiny hole stays open for life and continues to protect against glaucoma attacks. However, in some cases, the opening might close over time. Your eye doctor will check this during your regular exams and can repeat the treatment if needed.
Protecting Your Vision for Life
YAG iridotomy is a proven and reliable way to protect your vision from angle-closure glaucoma. If you live in the Greater Hartford Region, including Hartford, Middlesex, and Tolland Counties, or nearby areas like Simsbury and Farmington, ReFocus Eye Health Avon is here to provide expert glaucoma care with compassionate, personalized attention. This treatment gives you confidence that you have taken a critical step to keep your eyes healthy. Continue to have regular, comprehensive eye exams with our ophthalmologists and optometrists so we can monitor your eye health and keep your vision clear and strong for years to come.
Dr. Pasternack and his staff have saved my vision with timely treatment for high ocular pressure. The team, including Sara, is professional, courteous, and knowledgeable. Highly recommended.
Christine Blomstrand
Extremely thorough and everyone there was so nice! Made me feel at ease from the beginning
Phyllis Starkie
Dr. was professional, funny, and accurate with my eye measurements. Staff was amazing, fit me in same day, and made the visit lighthearted yet thorough. Highly recommend this practice!
John Carmon
Charlotte got me a same-day appointment with Dr. Pasternack for a painful eye issue. The staff was kind and knowledgeable. Dr. Pasternack was gentle, understanding, and attentive to my concerns.
Gail Deutsch
Dr. Pasternak and his team are awesome. Thoughtfulness, kindness and competency make for a great experience as a patient.
Gordon Bishop
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