How Lacrimal Probing Helps Clear the Way for Better Vision
Understanding the Lacrimal System and Its Blockages
The lacrimal system moves tears from openings in the eyelids through a bony canal into the nose. When that pathway is blocked, tears back up, causing discomfort and potential infection.
Tears leave the eye through tiny puncta at the inner corners, travel down narrow canaliculi, and pass through the nasolacrimal duct into the nasal cavity.
In many infants the duct does not open at birth. Although it often clears naturally, lingering blockage lets mucus build up, leading to constant tearing, red lids, and mild infections such as conjunctivitis.
Most ducts open on their own, even in older children, but persistent obstruction after the first year may call for probing. Success rates are highest before age four, making early evaluation important.
Do I Need Lacrimal Probing?
A blocked tear duct can be annoying and messy, yet probing offers a quick way to restore normal drainage.
Common signs point to the need for evaluation.
- Constant tearing that runs down the cheek
- Sticky discharge or repeated mild infections
- No relief from other treatments
Infants and young children with persistent blockage gain the greatest benefit, but adults with chronic tearing can also improve with probing.
The procedure is usually done in the clinic, takes only a few minutes, and most patients recover quickly.
Addressing the problem sooner prevents ongoing irritation and lowers the chance of more involved surgery later.
Lacrimal Probing: Step-by-Step
Knowing what happens during probing can ease concerns and help you feel prepared.
We describe the steps, gain consent, and position the patient in a reclined chair with good lighting. A towel protects clothing from any fluid.
Numbing drops are applied to the eye and punctum. While they take effect, the clinician checks a clean dilator and prepares a saline-filled syringe with a soft cannula.
The lower lid is gently pulled down, and a Nettleship dilator is guided through the punctum. A slight rotation widens the channel to allow smooth passage of the cannula.
The cannula follows the dilator's path. Saline is injected slowly while the clinician monitors flow and asks if the patient tastes salt, an encouraging sign.
Easy flow and a salty taste show the duct is open. Lack of taste or resistance suggests a blockage that may need further evaluation.
The Benefits of Lacrimal Probing
Successful probing offers both immediate relief and helpful diagnostic information.
Opening the duct reduces excess tearing, sticky lids, and the risk of recurring conjunctivitis, making daily life more comfortable.
Because probing is quick and minimally invasive, most patients avoid operating-room surgery and lengthy recovery.
Even when the duct appears open, probing reveals how the system functions under pressure, guiding any additional testing or treatment.
Using Probing Results to Plan Next Steps
The way saline flows during probing helps determine whether more care is needed.
If saline reaches the nose and the patient tastes salt, the duct is open during the test. Functional tests like a Jones test may still be ordered if tearing continues.
Failure to taste salt points to an obstruction somewhere along the duct, and the feel of the cannula helps locate it.
A hard stop suggests the blockage is lower in the nasolacrimal duct, while a soft stop signals a higher blockage in the canaliculus. Fluid reflux from the upper punctum further narrows down the location.
Frequently Asked Questions
These answers address common concerns about lacrimal probing.
By gently widening the tear duct, probing allows tears and mucus to exit the eye freely, easing continuous watering and irritation.
Local anesthetic drops numb the area, so most patients feel little to no pain. Mild pressure is the most common sensation.
If tearing persists or a functional blockage is suspected, additional tests such as lacrimal scans or the Jones test may be recommended to guide further treatment.
Success is highest when performed before age four. With proper technique and case selection, the procedure can be very effective across age groups.
Partner with Our Eye Care Team
Lacrimal probing offers a simple yet effective solution for blocked tear ducts, and our experienced clinicians are ready to help. If watery, irritated eyes are troubling you or your child, let us evaluate the problem and recommend the best course of action.
Very friendly staff, very fast, very efficient!
Tim McDonald
I went to get evaluated and was a bit nervous, but everything was good. I recommend anyone who needs their eyes evaluated to relax, everything will be fine.
Francine Orsini
Dr. Garrana is fantastic! She gave very clear and thoughtful instructions for pre and post surgery. she is very responsive even outside of office hours. I Would highly recommend if anyone wants to get lasik surgery.
Lynn W.
The staff was kind and friendly. The Dr was very knowledgeable and helpful. The procedure was clearly explained.
Maricely Lopez
Friendly ,professional staff. Knowledgeable,easy to work with and respectful.
Agnes Dziewaltowski