Sticky Eye and Blocked Tear Duct in Babies: What's Normal and What to Do

Waking up to find your newborn's eye glued shut with yellow or green discharge is alarming the first time it happens. But in the vast majority of cases, sticky eye in newborns is a minor, harmless condition that resolves with simple cleaning and — if it persists — a bit more targeted care.

Here's what sticky eye in newborns actually is, how to manage it, and the signs that mean a trip to the GP is warranted.

What Is Newborn Sticky Eye?

Sticky eye in newborns (also called neonatal conjunctivitis or ophthalmia neonatorum in the medical literature) refers to discharge from the eye. There are a few different causes:

Normal Newborn Discharge

In the first few weeks, many newborns produce a small amount of eye discharge — pale yellow, slightly crusty, usually worst on waking. This is often simply a normal feature of the newborn period, related to the immaturity of the drainage system rather than any infection. It's extremely common.

Blocked Nasolacrimal Duct (Blocked Tear Duct)

The nasolacrimal duct is the small tube that drains tears from the eye into the nose. In newborns, this duct is often narrow or partially obstructed — estimates suggest it's present in 20% of newborns. When the duct is blocked, tears can't drain properly and pool in the eye, creating conditions for bacterial growth and resulting in persistent discharge.

A blocked tear duct typically presents as:

• Persistent watering of one eye (or occasionally both)
• Yellow or whitish discharge, particularly on waking
• Crusty lashes
• The white of the eye is usually clear — if the eye itself looks red or inflamed, that's a different picture

Most blocked tear ducts resolve spontaneously by 12 months as the duct matures and widens.

Infective Conjunctivitis

True bacterial or viral conjunctivitis does occur in newborns. It tends to produce more copious discharge, often thick and yellow or greenish, and may cause more obvious redness of the eye itself. In the first 28 days of life in particular, any significant eye discharge should be assessed by a healthcare professional because there are some serious causes (including neonatal gonococcal or chlamydial infection contracted during birth) that require prompt treatment.

If your baby is beyond the newborn period (28 days-plus), mild infective conjunctivitis is common and often self-resolving, but still worth mentioning to your health visitor or GP if it doesn't clear.

How to Clean a Sticky Eye

Keeping the eye clean is the first and most important step in management.

What you need:

• Cooled boiled water (tap water in areas with clean water is fine, or use sterile water)
• Soft cotton wool balls or pads (not cotton wool with fibres that can leave bits in the eye)
• Clean hands

Technique:

1. Wash your hands thoroughly
2. Dip a cotton wool ball in the water and squeeze out the excess
3. Gently wipe from the inner corner of the eye (near the nose) to the outer corner — always inner to outer, never the other way
4. Use a fresh cotton wool ball for each wipe — do not re-dip a used one
5. Use a separate cotton wool ball for each eye to avoid cross-contamination
6. Do this as needed when you notice discharge — often on waking and after feeds

The white of the eye should look clear. If it's visibly red or your baby seems in discomfort, see a GP.

The Massage Technique for Blocked Tear Ducts

Gentle massage can help unblock the nasolacrimal duct and speed resolution. Your midwife or health visitor can show you the technique in person, but in essence:

• Using a clean index finger (or the tip of a little finger for a very small baby), place it over the small bony bump beside the inner corner of the eye (this overlies the lacrimal sac)
• Apply firm, gentle downward pressure — ten strokes, two to three times a day
• This compresses the sac and can help force open the lower end of the duct

Research on the effectiveness of massage is mixed, but it's safe, easy to do, and commonly advised. Many parents find it helps.

When Antibiotic Drops Are Used

Topical antibiotic eye drops (chloramphenicol) are commonly prescribed for persistent or clearly infective sticky eye. They're very effective for bacterial conjunctivitis and work quickly — improvement is usually seen within 48 hours.

They're available on prescription from your GP. Chloramphenicol drops are also available over the counter at pharmacies for adults, but for babies, getting a GP prescription and proper assessment is more appropriate.

If your baby's sticky eye is caused by a blocked tear duct rather than active infection, antibiotic drops may be prescribed to manage secondary infection but won't resolve the underlying duct blockage.

When to See Your GP

Contact your GP if:

• Your baby is in the first 28 days of life and has any significant eye discharge (always worth getting assessed promptly in this age group)
• The discharge is very thick, profuse, or clearly green-yellow
• The white of the eye looks red or inflamed
• The eyelids are very swollen
• Your baby seems to be in discomfort or is rubbing the eye
• The eye doesn't improve with cleaning after a few days
• The eye discharge is getting worse rather than better

When It Doesn't Resolve

For blocked tear ducts that persist beyond twelve months, a referral to an ophthalmologist is usually made. If massage and antibiotic drops haven't resolved the blockage, a procedure called probing — where a fine probe is passed through the duct under general anaesthetic to open the obstruction — may be recommended. It's a minor procedure with a very high success rate.

The majority of blocked tear ducts resolve without any intervention before this point.