Sticky or red eye in a newborn: tear duct or infection

Key takeaways

A blocked tear duct leaves the white of the eye quiet and the lids flat. A newborn eye infection makes the white red, the lids swollen and the discharge heavier.
In a baby under a month old, a red eye, a swollen lid or pus needs a same-day visit. The NHS says a baby under 30 days with red, sticky eyes needs an urgent appointment.
Cooled boiled water on a fresh cotton wool pad for each eye, wiped from the nose corner outwards, cleans the crust. It does not treat an infection.
Yellow-green crust can come from a plain blocked duct (AAPOS), so colour alone cannot tell the two apart in a newborn. A doctor needs to look.
About 90% of blocked tear ducts clear on their own in the first year (AAPOS). Breast milk, kohl and herbal drops are not part of the treatment.

It is one of the most natural questions in the first weeks: one of her eyes is wet and sticky, is this normal? Most of the time the answer is a blocked tear duct, which is common and gentle. Sometimes it is an infection caught around the time of birth, and that is a different matter, because in a newborn it can move quickly.

From the photo alone I cannot always tell which it is, and neither can you. So this page gives you the clues that point one way or the other, what is safe to do while you wait, and the short list that means a same-day visit. If your baby is past the first month, the page on blocked tear ducts is the one to read.

Is my newborn's sticky eye a blocked tear duct or an infection?

Look at the white of the eye and the lids. A blocked tear duct leaves the white quiet and the lids flat: the eye is wet, the lashes crust, and your baby feeds and settles as usual. An infection makes the white red, the lids swollen, and the discharge heavier, and it may come back within minutes of wiping.

The American Association for Pediatric Ophthalmology and Strabismus (AAPOS) describes a blocked duct as tears pooling on the eye and spilling onto the cheek, with crusting or yellow-green discharge on the lids. That last detail is the trap. Yellow-green crust can come from a plain blocked duct, so colour alone does not settle it in a baby under a month old. That is why I would rather look at the eye than guess from a photograph.

Does the day it started tell us which one it is?

It gives a hint, not an answer. A blocked duct can show up in the first days or weeks. A newborn eye infection (ophthalmia neonatorum, conjunctivitis of the newborn) is caught during birth and has a typical timetable, which is why the doctor asks what day it began.

StatPearls, a clinical reference, lists the usual onset: chemical irritation within the first 24 hours, gonococcal infection between days 2 and 5, chlamydial infection between days 5 and 14, and herpes simplex virus after day 7. The US Centers for Disease Control and Prevention (CDC) gives similar windows, 2 to 5 days for gonococcal and 5 to 12 days for chlamydial. Treat these as a guide to the likely cause. They do not tell you the eye is safe because it started late or early.

If you were told in pregnancy that you had an infection, there is no blame in it. Pregnancy and your baby's eyes sets out what is checked and what can be treated before birth.

What can I do at home for a sticky eye in the first weeks?

Clean it gently, and watch it. The NHS advice is to boil water, let it cool, and wipe the lashes with a clean cotton wool pad, one piece for each eye. Wipe from the corner by the nose outwards and use a fresh pad for each pass. Wash your hands before and after.

Cleaning keeps the lashes clear so you can see the eye underneath. It does not treat an infection. The NHS Healthier Together guidance on sticky eyes in babies adds that drops are not needed unless the eye itself looks red, and that is a sentence worth remembering: if you feel you need drops, the eye needs a doctor first.

Tear duct massage, a gentle downward stroke over the little sac beside the nose, is the usual advice once a duct is the likely cause. AAPOS describes firm downward pressure over the inner corner of the eye. In the first weeks I would ask the doctor who has looked at your baby to confirm it is a duct before you start. How to do the massage is on its own page, and I will not repeat it here.

No milk, no kohl, no herbal drops. I know the advice comes with love. What the evidence says about breast milk in a sticky eye and kohl or celak on a baby's eyes give the reasons, and the short version is that the time spent trying them is the real risk.

Which signs mean I should go the same day?

In the first month, any of these: a red eye, a swollen lid, heavy discharge or pus, or yellow or green discharge you are not sure about. So is a baby who is feverish, feeding poorly, unusually sleepy or hard to rouse, whatever the eye looks like. The NHS says a baby under 30 days with red, sticky eyes needs an urgent appointment, and our own is this urgent? guide puts it the same way.

Phone your paediatrician, or go to a hospital with a paediatric or emergency department, and say the words "newborn" and "red eye" so the timing is understood. Bring the Buku Rekod Kesihatan if you have it. If the eye is swollen shut, or your baby has trouble breathing, looks pale or blue, or is limp, go to emergency at once.

One different picture is worth knowing. A painful red lump beside the nose with discharge, especially with a fever, is an infection of the tear sac and needs antibiotics promptly; it is described in the blocked tear duct page. A bluish, painless lump in the same spot from birth is a different thing, covered in a bluish lump beside my newborn's nose. And if the lid itself is the problem, a swollen eyelid has its own urgent signs.

What will the doctor do about a newborn eye infection?

Examine the eye, take swabs, and start treatment without waiting for the result. The College of Optometrists guideline says swabs are taken for culture and antibiotics are started without delay, by mouth, by injection or into a vein, and as eye drops. StatPearls adds that laboratory confirmation uses staining and culture, nucleic acid tests, and PCR for herpes simplex.

The choice of medicine follows the cause. For gonococcal infection the CDC recommends a single injected antibiotic of the cephalosporin class, and states that drops alone are inadequate. Chlamydial infection is treated with an oral macrolide antibiotic, and suspected herpes with an antiviral, given urgently. This is why a pharmacy bottle is the wrong first step and why the paediatric team usually leads. My part is to look at the front of the eye, the cornea, which is the part at risk.

Why the hurry? StatPearls notes that without prompt treatment, gonococcal conjunctivitis can progress to corneal perforation within 24 to 48 hours of symptoms starting, and that a newborn's tear flow is sluggish and immune defences are not finished. Not every red eye is that serious, but nobody can tell which kind you have from the doorway. The visit is how we find out, and a morning spent at the clinic costs far less than waiting.

If it is only a blocked duct, how long will it last?

Usually weeks to months, and most clear without any procedure. AAPOS says more than 5% of infants have symptoms of a blocked tear duct and about 90% resolve on their own in the first year of life. In a trial from the Pediatric Eye Disease Investigator Group, 66% of eyes in infants aged 6 to under 10 months had cleared after six months of massage and observation.

Keep cleaning, keep the massage gentle, and know the signs above. If the watering and crusting are still there as the first birthday approaches, or are unusually severe before then, ask for a referral to an eye doctor. Probing, the small procedure that opens the duct, is explained in recovery after tear duct probing. The eye part of the newborn check and the checks that follow are in your baby's first eye check.

Go the same day if your baby is under a month old and…

The white of the eye is red, or the eyelid is swollen.
There is heavy discharge or pus, or yellow or green discharge you are not sure about.
There is a fever, poor feeding, or your baby is unusually sleepy, floppy or hard to wake.
The eye is swollen shut, or your baby is struggling to breathe, looks pale or blue: go to emergency now.

Is this urgent? Today, this week or routine

Common questions

How do I tell a blocked tear duct from conjunctivitis in a newborn?

Look at the white of the eye and the lids. A blocked duct leaves the white quiet and the lids flat, with tears pooling and crust on the lashes. Infection makes the white red, the lids swollen and the discharge heavier. In the first month a doctor should look, because colour of the discharge alone cannot separate them (AAPOS, NHS).

Is a sticky eye in a newborn an emergency?

It becomes urgent if the eye is red, the lid is swollen, there is heavy discharge or pus, or the baby seems unwell. The NHS says a baby under 30 days with red, sticky eyes needs an urgent appointment. A wet eye with a quiet white and a baby who feeds normally is more often a blocked duct, but mention it to the doctor.

What causes ophthalmia neonatorum, the eye infection of the newborn?

It is an eye infection in the first 30 days of life, caught during birth from an infection in the birth canal, and it may be bacterial, chlamydial or viral (College of Optometrists). Chlamydia is now more common than gonorrhoea as a cause. Having it is not a parent's fault, and it is treatable when found early.

How soon after birth does a newborn eye infection start?

It depends on the cause. StatPearls gives chemical irritation within 24 hours, gonococcal infection between days 2 and 5, chlamydial infection between days 5 and 14, and herpes simplex virus after day 7. These are guides to the likely cause, not a way to rule an infection out.

Can I use breast milk or eye drops from the pharmacy on my newborn's sticky eye?

I would not. No study shows breast milk treats a newborn eye infection, and the real risk is the days lost before treatment. For gonococcal infection the CDC states that drops alone are inadequate. Clean with cooled boiled water and see a doctor if the eye is red, swollen or discharging.

How do I clean my newborn's sticky eye safely?

Boil water, let it cool, and wipe the lashes with clean cotton wool, one piece for each eye, from the corner by the nose outwards. Use a fresh pad for each pass and wash your hands before and after (NHS). Cleaning keeps the lashes clear so you can see the eye. It is not a treatment for infection.

When does a blocked tear duct need an eye doctor?

If the watering and crusting persist as the first birthday approaches, or are unusually severe sooner, ask for a referral. AAPOS says about 90% resolve on their own in the first year, and that probing may be considered if the blockage persists beyond 12 months of age or symptoms are severe.

References

NHS · Conjunctivitis · www.nhs.uk
NHS · Red eye · www.nhs.uk
NHS Healthier Together · My baby has a sticky eye · wyhealthiertogether.nhs.uk
College of Optometrists · Clinical Management Guideline, Ophthalmia neonatorum · www.college-optometrists.org
StatPearls (NCBI Bookshelf) · Ophthalmia Neonatorum (Neonatal Conjunctivitis) · www.ncbi.nlm.nih.gov
CDC · Sexually transmitted infections treatment guidelines, Chlamydial infections · www.cdc.gov
CDC · Sexually transmitted infections treatment guidelines, Gonococcal infections among neonates · www.cdc.gov
AAPOS · Nasolacrimal duct obstruction (blocked tear duct) · aapos.org
Archives of Ophthalmology · Resolution of congenital nasolacrimal duct obstruction with nonsurgical management (Pediatric Eye Disease Investigator Group, 2012) · pubmed.ncbi.nlm.nih.gov

By Dr Chan Li Yen. General information only. It does not replace a consultation. If you are worried about your child's eyes or vision, please see an eye doctor.

A sticky or red eye in a newborn: blocked tear duct or infection?