What it is
Lacrimal probing evaluates and relieves a blockage in the tear drainage passage that carries tears from the eye into the nose. It is most often used for congenital nasolacrimal duct obstruction — a blockage present from birth, common in young babies — which causes persistent watering and sticky discharge from one or both eyes. A fine, smooth probe is passed through the tear drainage passage to open the blockage.
Who it's for
Babies and young children with persistent watering or discharge from a blocked tear duct that has not cleared with simple measures such as gentle massage, usually tried first in the early months of life.
What to expect
The procedure is brief and is usually done under general anaesthesia in young children, often combined with an examination of the tear drainage system. It is normally done as day-care.
Recovery
Some watering, slight bleeding from the nose, or crusting around the eye can occur for a day or two. Your doctor will advise on any drops or ointment to use and when to review the child.
Frequently asked questions
Does a blocked tear duct always need probing?
No. Many babies' tear ducts open on their own in the first year, often helped by gentle massage. Probing is considered if watering and discharge persist.
Is probing done under general anaesthesia?
In young children, yes, so the procedure can be done quickly and safely. Your doctor will discuss the anaesthesia plan with you beforehand.
Medically reviewed by Dr. Sweta Patro