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What Is Lacrimal Balloon Dilation?

Lacrimal balloon dilation is a procedure that widens a narrowed tear duct using a small balloon-tipped catheter. The balloon is gently inflated to open tight areas so tears can drain more easily. It is used for tear drainage problems that cause constant watering, irritation, or repeated infections. Balloon dilation may be used after probing or when a narrowing is suspected rather than a complete blockage. The goal is to improve drainage while keeping the natural pathway in place.

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What Is Lacrimal Balloon Dilation?

Lacrimal balloon dilation is a procedure that widens a narrowed tear duct using a small balloon-tipped catheter. The balloon is gently inflated to open tight areas so tears can drain more easily. It is used for tear drainage problems that cause constant watering, irritation, or repeated infections. Balloon dilation may be used after probing or when a narrowing is suspected rather than a complete blockage. The goal is to improve drainage while keeping the natural pathway in place.

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Who Might Need Balloon Dilation?

It may be recommended for people who have ongoing watery eyes due to a narrowed tear duct. Some children need it if probing did not fully solve the problem or if the duct narrows again. Adults may need it when scarring or inflammation has tightened the drainage channel. Your doctor will base the decision on symptoms and tear drainage testing.

How the Procedure Is Performed

Numbing medicine is used, and the procedure may be done in a surgical setting depending on age and comfort needs. The doctor threads a thin catheter into the tear drainage pathway and positions the balloon at the narrowed spot. The balloon is inflated for short periods to widen the area, then removed. In some cases, a small stent is placed to help keep the pathway open while it heals.

What Recovery Is Like

Most people have mild soreness, watering, or irritation for a short time afterward. Your doctor may prescribe drops to reduce inflammation and prevent infection. You may be asked to avoid rubbing the eye and to keep the eyelids clean during healing. Follow-up visits help confirm that drainage has improved and that swelling is settling.

Risks and Next Steps

Common issues include temporary irritation and mild bleeding from the tear opening. Less common risks include infection, re-narrowing, or the need for another procedure. If symptoms continue, your doctor may suggest further testing to locate a blockage more precisely. Treatment options can include repeat dilation, stenting, or surgery to create a new drainage route when needed.

FAQs on Lacrimal Balloon Dilation

How is balloon dilation different from probing?

Probing uses a thin instrument to pass through and open a blockage. Balloon dilation adds gentle stretching with an inflatable balloon to widen narrowed areas. It can be helpful when the duct is tight rather than fully closed. Your doctor may choose one or both depending on the case.

Will I feel the balloon?

You may feel pressure or a brief pulling sensation, but numbing medicine helps reduce discomfort. Some people notice watering or mild soreness afterward. Strong pain is not expected and should be reported. Your care team can adjust comfort measures if needed.

How successful is balloon dilation?

Success depends on where the narrowing is and what caused it. Many people improve, but some need repeat treatment if scarring returns. Following aftercare and treating eyelid inflammation can help results last. Your doctor can give a realistic estimate for your situation.

Do I need a stent after balloon dilation?

Not always. A stent is used when the doctor wants extra support to keep the pathway open during healing. It may stay in place for a set period and then be removed. Your doctor will explain whether a stent is recommended and why.

References

What Is a Blocked Tear Duct? American Academy of Ophthalmology (AAO). https://www.aao.org/eye-health/diseases/what-is-blocked-tear-duct. March 1, 2015.

Blocked Tear Duct (Nasolacrimal Duct Obstruction). Cleveland Clinic. https://my.clevelandclinic.org/health/diseases/17260-blocked-tear-duct-nasolacrimal-duct-obstruction. Updated January 19, 2024. https://www.aao.org/eyenet/article/balloon-dacryoplasty-congenital-nasolacrimal-duct-

Balloon Dacryoplasty for Congenital Nasolacrimal Duct Obstruction. American Academy of Ophthalmology (AAO). https://www.aao.org/eyenet/article/balloon-dacryoplasty-congenital-nasolacrimal-duct-. July 1, 2014.

Blocked tear duct. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/blocked-tear-duct/diagnosis-treatment/drc-20351375. August 18, 2025.

Nasolacrimal Duct Obstruction. National Institutes of Health (NIH). https://www.ncbi.nlm.nih.gov/books/NBK532873/. Updated August 8, 2023.