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Eye examination under anaesthetic / EUA and probing for blocked tear duct in children
Category: Eye Procedures & Tests · All eye procedures & tests
What it is
In young children, some eye checks and simple procedures need a short general anaesthetic. Two common examples are a full examination under anaesthetic (to measure, photograph and examine eyes that cannot be assessed in clinic) and probing of a blocked tear duct that has not cleared with massage and time.
Why it is done
A blocked tear duct causes a watery, sticky eye from infancy; most clear in the first year. Probing is offered when it persists. Examination under anaesthetic is used when accurate measurements or treatment are needed that a child cannot cooperate with awake.
How to prepare
The paediatric and anaesthetic teams assess the child; fasting times by age are given. You can usually stay with your child until they are asleep.
What happens during the procedure
A fine probe is passed gently through the tear duct into the nose to open the thin membrane causing the blockage. It takes only a few minutes. Examination under anaesthetic includes pressure checks, measurements and a full retinal examination, and minor treatments can be combined.
Afterwards — recovery & results
Children usually go home the same day once awake and eating. A slightly blood-stained tear discharge for a day after probing is normal. Most blocked ducts clear after probing; a minority need repeat probing or further procedures later.
Risks & considerations
Risks are those of short general anaesthesia in children (low in healthy children), minor bleeding from the duct, and creating a false passage (uncommon). The team will discuss your child's individual situation.
Related guides on MedicalVideos.com
Frequently asked questions
Should we just keep waiting instead of probing?
Many ducts open by 12 months with massage. Beyond that, the chance of spontaneous clearing falls and probing becomes more worthwhile — your eye team will time it with you.
Is the anaesthetic safe for babies?
Short paediatric anaesthesia in a specialist setting is very safe, and the procedures themselves take only minutes.
Related procedures — Eye Procedures & Tests
Browse the E section of the A–Z list or return to the Procedures & Tests hub.