[Durgical](https://durgical.com/en/) › [DurgiPedia](https://durgical.com/en/durgipedia/) › [Ophthalmology](https://durgical.com/en/ophthalmology/) › [Paediatric ophthalmology](https://durgical.com/en/ophthalmology/areas/pediatric/) › The tearing or red-eyed infant

# The tearing or red-eyed infant

- Clinical approach

Most watery or red eyes in babies are a blocked tear duct or conjunctivitis. Light sensitivity with a large, cloudy cornea means congenital glaucoma.

Updated Nov 5, 2026

**See it in 3D:** [Cornea](https://durgical.com/en/anatomy/cornea/) · [Tear drainage](https://durgical.com/en/anatomy/lacrimal-canaliculus/)

## Key points

- Tearing + photophobia + large cloudy cornea = congenital glaucoma.
- Hyperacute purulent eye in a newborn = gonococcus.
- Fever ≥ 5 days + red eyes without discharge = Kawasaki.
- Most infant watering = blocked duct.

## What it is

In infants and young children, a watery or red eye is common and usually benign: a blocked tear duct, viral or bacterial conjunctivitis, or a scratch from a fingernail. A few causes threaten sight or life and must be recognised early: neonatal gonococcal conjunctivitis, congenital glaucoma, orbital cellulitis and, in a child with prolonged fever, Kawasaki disease.

## Red flags

- Tearing with light sensitivity, squeezing of the lids and a large or cloudy cornea: congenital glaucoma.
- Red, very purulent eye in the first week of life: gonococcal conjunctivitis.
- Fever, swollen lid, painful or limited eye movements: orbital cellulitis.
- Fever for five days or more with red eyes without discharge: Kawasaki disease.
- White pupil or a new squint with a red eye: retinoblastoma.

## Step-by-step approach

- Ask the age at onset, discharge, light sensitivity, fever and contacts with infections.
- Look at the size and clarity of each cornea and compare the eyes.
- Look for discharge, lid swelling and a mucus reflux from the tear sac on pressure.
- Stain with fluorescein if a scratch is possible.
- Check the red reflex and the general state of the child.

## Causes of a tearing or red eye in infants

| Cause | Clue | Urgency |
| --- | --- | --- |
| Congenital nasolacrimal duct obstruction | Watery, sticky lashes, white eye | Routine |
| [Viral or bacterial conjunctivitis](https://durgical.com/en/conditions/conjunctivitis/) | Red, discharge, often both eyes | Routine |
| [Neonatal conjunctivitis](https://durgical.com/en/conditions/chlamydia-infection/) | First month, purulent | Same day; emergency if hyperacute |
| [Corneal abrasion](https://durgical.com/en/conditions/corneal-abrasion-and-ocular-foreign-body/) | Sudden, crying, fluorescein stain | Same day if not healing |
| Congenital glaucoma | Photophobia, large cloudy cornea | Urgent |
| [Orbital cellulitis](https://durgical.com/en/conditions/orbital-cellulitis/) | Fever, proptosis, limited movements | Emergency |
| [Kawasaki disease](https://durgical.com/en/conditions/kawasaki-disease/) | Prolonged fever, non-purulent red eyes | Urgent paediatric care |

## Keys to the differential

- Congenital glaucoma enlarges the eye because the infant's sclera stretches with pressure; it is easily mistaken for a blocked duct.
- Kawasaki conjunctivitis spares the limbus and has no discharge.
- Ophthalmic drops for adults should not be used in infants without specialist advice.

## Next step / Initial management

- Blocked duct with a white eye: sac massage and lid hygiene; refer if it persists beyond about 12 months.
- Photophobia with a large or cloudy cornea: urgent paediatric ophthalmology for congenital glaucoma (surgery).
- Neonatal conjunctivitis: same-day assessment with cultures and systemic treatment as indicated.
- Fever with proptosis or limited eye movements: admission and intravenous antibiotics; prolonged fever with red eyes: assess for Kawasaki disease.

## Test yourself

Think of the answer, then tap the question to see it.

## Which signs in a tearing infant suggest congenital glaucoma?

Light sensitivity, squeezing of the lids and a large or cloudy cornea.

## How does the conjunctivitis of Kawasaki disease look?

Bilateral red eyes without discharge, sparing the area around the cornea, in a child with prolonged fever.

## When is a blocked tear duct in an infant referred?

If it persists beyond about 12 months, or earlier if there is infection or doubt about the diagnosis.

[Add to my cards (3)](https://durgical.app/estudiar/?add=/en/ophthalmology/the-tearing-or-red-eyed-infant/)

## Connections

## See it in 3D 2

The structures of Durgical's 3D anatomy where it is found.

- [Cornea](https://durgical.com/en/anatomy/cornea/)
- [Tear drainage](https://durgical.com/en/anatomy/lacrimal-canaliculus/)

## Related 4

- [The watering eye (epiphora)](https://durgical.com/en/ophthalmology/the-watering-eye/)
- [Neonatal conjunctivitis and its prevention](https://durgical.com/en/ophthalmology/neonatal-conjunctivitis-and-its-prevention/)
- [Red eye: what is serious and what is not](https://durgical.com/en/ophthalmology/red-eye-what-is-serious-and-what-is-not/)
- [Proptosis and periorbital swelling](https://durgical.com/en/ophthalmology/proptosis-and-periorbital-swelling/)

## Related conditions 5

- [Conjunctivitis](https://durgical.com/en/conditions/conjunctivitis/)
- [Kawasaki disease](https://durgical.com/en/conditions/kawasaki-disease/)
- [Orbital cellulitis](https://durgical.com/en/conditions/orbital-cellulitis/)
- [Corneal abrasion and ocular foreign body](https://durgical.com/en/conditions/corneal-abrasion-and-ocular-foreign-body/)
- [Dacryocystitis and nasolacrimal duct obstruction](https://durgical.com/en/conditions/dacryocystitis-and-nasolacrimal-duct-obstruction/)

[← All of ophthalmology](https://durgical.com/en/ophthalmology/)

Educational content; not a clinical guideline and no substitute for assessment by a health professional. For sudden visual loss, severe eye pain, a chemical burn or an eye injury, go to an emergency department at once.

Sources: [Primary Congenital Glaucoma](https://www.ncbi.nlm.nih.gov/books/NBK574553/) (StatPearls Publishing (NCBI Bookshelf), 2024); [Congenital Nasolacrimal Duct Obstruction](https://www.ncbi.nlm.nih.gov/books/NBK559267/) (StatPearls Publishing (NCBI Bookshelf), 2026); [Kawasaki Disease](https://www.ncbi.nlm.nih.gov/books/NBK537163/) (StatPearls Publishing (NCBI Bookshelf), 2023).

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Representative model, for educational purposes only.

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Source: https://durgical.com/en/ophthalmology/the-tearing-or-red-eyed-infant/
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite as: DurgiPedia (durgical.com), https://durgical.com/en/ophthalmology/the-tearing-or-red-eyed-infant/