What is tear duct balloon dilation, irrigation, and probing?
Tear duct balloon dilation, irrigation, and probing are minimally invasive procedures used to open a blocked or narrowed tear drainage system. When tears cannot drain normally through the tear duct, they overflow onto the face, causing persistent watery eyes, discharge, and discomfort. These procedures work by clearing or widening the obstruction within the drainage pathway to restore normal tear flow.
Each procedure addresses tear duct blockage in a slightly different way, and they are often used in combination depending on the location and severity of the obstruction, as well as the age of the patient.
Who needs tear duct balloon dilation, irrigation, and probing?
These procedures may be recommended for both children and adults experiencing symptoms of a blocked tear duct that have not resolved with conservative management. They are typically considered when:
- Persistent tearing, discharge, or crusting around the eye is affecting daily life
- Conservative measures such as nasolacrimal massage and antibiotic drops have not resolved the blockage in infants
- Imaging or irrigation of the tear drainage system has confirmed a partial or complete obstruction
A less invasive option is preferred before considering a more involved surgical procedure such as dacryocystorhinostomy (DCR)
What should I expect during tear duct balloon dilation, irrigation, or probing?
Prior to the procedure, you will meet with your oculofacial plastic surgeon for a thorough evaluation of the tear drainage system. During this appointment, your surgeon will:
- Review symptoms and their duration, as well as any prior treatment
- Examine the tear drainage openings at the inner corner of the eyelids
- Assess the degree of blockage and its likely location within the drainage system
- Discuss which procedure or combination of procedures is most appropriate
In adults, these procedures are typically performed in the office or as an outpatient procedure under local anesthesia.
Probing
Probing involves passing a thin, smooth instrument called a probe through the small drainage openings at the inner corner of the eyelid and gently advancing it through the tear drainage channels to break through or open the obstruction. It is most commonly used in infants and young children with a congenital blocked tear duct that has not resolved on its own by around 12 months of age.
Irrigation
Irrigation involves flushing a small amount of saline solution through the tear drainage system using a fine tube inserted into the drainage opening. It is used both as a diagnostic tool to assess the location and degree of a blockage and as a treatment to clear debris or partial obstructions within the drainage channels. Irrigation is often performed alongside probing.
Balloon Dilation
Balloon dilation, also called balloon dacryoplasty, involves passing a thin guide wire with a small, deflated balloon attached through the tear drainage opening and advancing it to the site of the obstruction. The balloon is then gently inflated to widen the narrowed or blocked segment of the duct, then deflated and removed. Balloon dilation is typically used when probing and irrigation alone have not been successful and is particularly useful for persistent blockages in older children and adults with partial obstructions.
What should I expect after tear duct balloon dilation, irrigation, or probing?
Recovery from these procedures is generally straightforward. Most patients and children are able to return to normal daily activities within a day or two.
- In the first several days following the procedure, it is normal to experience:
- Mild tenderness or sensitivity around the inner corner of the eye
- Light blood-tinged discharge or mild nasal bleeding, particularly after balloon dilation
- Some temporary increase in tearing as the drainage system adjusts
Antibiotic drops or ointment are typically prescribed for a short period following the procedure to reduce the risk of infection. Follow-up appointments allow your surgeon to confirm that drainage has improved and that symptoms have resolved.
It is important to note that in some cases, particularly in adults with complete obstructions or significant scarring within the drainage system, probing and balloon dilation may not produce a lasting result. If symptoms return or persist, a more definitive surgical procedure such as DCR, which creates a new drainage pathway directly between the tear sac and the nasal cavity, may be recommended.
What are the risks of tear duct balloon dilation, irrigation, or probing?
These procedures are minimally invasive and well tolerated in both children and adults. As with any procedure, there are potential risks to be aware of:
- Bleeding or infection
- Temporary discomfort or irritation at the drainage opening
- Damage to the tear drainage structures
- Incomplete opening of the obstruction
- Recurrence of the blockage
Your surgeon will discuss the specific risks relevant to your situation before the procedure.
Persistent watery eyes are often a sign that the tear drainage system needs attention. The oculofacial plastic surgeons at The Iowa Clinic can evaluate your tear drainage system and recommend the most appropriate course of treatment. Call 515.875.9480 to schedule an appointment.