Congenital Nasolacrimal Duct Obstruction (NLDO) Treatment
Recognizing Congenital NLDO in Your Baby
Babies with NLDO often have watery eyes that overflow onto the cheeks, even when they are not crying. You may notice a sticky, yellowish discharge that collects in the corner of the eye or crusts on the eyelashes after sleep.
- Excessive tearing in one or both eyes
- Crusty eyelids, especially in the morning
- Clear or yellow-green discharge
- Mild redness on the white part of the eye
While NLDO is typically mild, certain symptoms suggest a more serious infection or complication. Call us right away. If these occur after hours, or if your baby seems very unwell, go to the emergency department.
- Swelling or redness around the nose or inner corner of the eye
- Fever or signs of illness
- Severe eye redness or cloudiness
- Pain when you touch the area near the nose
- Increasing discharge despite home care
- A firm, tender bump at the inner corner of the eye with redness, warmth, and fever
- Swelling or redness that spreads to the eyelid or cheek, or your baby refuses to open the eye
- Hazy or enlarged cornea, extreme light sensitivity, or squeezing the eyes shut
- A bluish swelling near the inner corner in a newborn or noisy breathing while feeding
Many newborns have watery eyes during the first few weeks of life, which is usually normal and temporary. NLDO stands out because the tearing persists beyond the first month and often comes with discharge or crusting.
Normal newborn tearing typically involves clear tears only, without the sticky discharge or persistent crustiness seen in blocked tear ducts. If your baby's symptoms continue or worsen after the first few weeks, we can evaluate whether NLDO is the cause. Light sensitivity, a cloudy or enlarged cornea, or obvious eye pain are not typical for NLDO and need urgent assessment.
Why NLDO Happens and Who Is at Risk
The tear drainage system runs from the inner corner of each eye down through a tiny channel into the nose. In babies with NLDO, a thin membrane of tissue fails to open at the lower end of this channel before or shortly after birth.
This membrane typically breaks open naturally during late pregnancy or in the first few weeks of life. When it stays closed, tears cannot drain properly and instead overflow onto the face or collect in the eye.
Congenital NLDO is quite common, affecting up to 20 percent of healthy newborns. Most cases resolve without treatment by the baby's first birthday.
- Premature infants may have a slightly higher risk
- The condition can affect one eye or both eyes
- Boys and girls are affected equally
- No lifestyle or environmental factors during pregnancy cause NLDO
- Children with Down syndrome or craniofacial differences have higher rates
- A prior sibling with NLDO slightly increases the chance
While NLDO is not strongly inherited, families may notice that more than one child experiences the condition. Certain anatomical features of the tear drainage system can run in families, making some babies more prone to blockage.
If you had NLDO as a baby or your older child did, your newborn may have a slightly higher chance of developing it. Even so, most cases occur without any family history.
How We Diagnose Nasolacrimal Duct Obstruction
Our eye doctor will gently examine your baby's eyes, eyelids, and the area around the nose. We look for signs of tearing, discharge, and any redness or swelling that might indicate infection.
We also apply gentle pressure over the tear sac, near the inner corner of the eye, to see if discharge comes out. This simple test helps us confirm that the tear duct is blocked rather than another condition causing the symptoms.
In most cases, we can diagnose NLDO based on your baby's symptoms and a physical exam alone. Occasionally, we may use specialized tests to evaluate the tear drainage system more closely.
- Dye disappearance test to see how well tears drain
- Irrigation of the tear duct to check for blockage
- Examination under magnification to assess the eyelid and tear duct openings
- Nasal endoscopy with an ENT specialist if a dacryocele or intranasal cyst is suspected
- Imaging is rarely needed and is reserved for atypical or complex cases
Several other issues can cause watery eyes or discharge in babies, so we carefully check for alternative explanations. Pink eye, inflamed eyelids, or an eyelash growing inward can produce similar symptoms to NLDO.
We also evaluate whether the eyelid position is normal and whether your baby has any signs of glaucoma, a rare but serious condition that can cause excessive tearing. By confirming the diagnosis, we can recommend the most appropriate treatment plan.
A dacryocele, a fluid-filled cyst of the tear sac present at birth, can appear as a bluish bump at the inner corner and may extend into the nose. This needs prompt evaluation by ophthalmology and often ENT because newborns can have breathing difficulty.
Treatment Options for Your Child
Because most cases of NLDO resolve on their own during the first year of life, we often start with a watchful waiting approach. We teach you how to perform gentle massage over the tear sac, which can help open the blocked membrane.
Regular cleaning to remove discharge and periodic warm compresses can keep your baby comfortable while the duct opens naturally. We schedule follow-up visits to monitor progress and decide if additional treatment becomes necessary.
Antibiotic drops do not open a blocked duct and are not needed routinely. We may use a short course only if there is mucopurulent discharge or bacterial conjunctivitis. Do not use decongestant or steroid eye drops unless prescribed by your eye doctor.
If your baby's symptoms persist beyond 12 months of age, or if recurrent infections develop, we may recommend a brief procedure to open the tear duct. Timing is individualized based on severity, age, and family preference.
- Persistent symptoms past the first birthday
- Repeated episodes of infection in the tear sac
- Severe discharge or discomfort affecting your baby's quality of life
- Complete blockage confirmed during examination
- Recurrent dacryocystitis or cellulitis despite appropriate medical therapy
Probing is a quick procedure in which we gently pass a very thin, smooth wire through the tear drainage pathway to open the blockage. For most infants beyond the first few months, this is performed in an outpatient surgical center or operating room with brief general anesthesia. In selected younger infants, it can be done in the office with topical anesthetic.
After opening the membrane, we flush sterile saline through the duct to confirm drainage. Reported success is high, often 80 to 95 percent in infants, though success declines with age. Some children need an additional procedure. We treat active infections before probing.
Possible risks include a small nosebleed, canalicular trauma, creation of a false passage, infection, and recurrence.
For babies who do not respond to standard probing, balloon catheter dilation offers an alternative approach. We thread a tiny deflated balloon through the tear duct and then gently inflate it to widen the passageway.
This technique helps when the blockage is more complex, the child is older, or a prior probe did not resolve symptoms. Outcomes are favorable and, in selected cases, comparable to repeat probing. It is typically done under brief general anesthesia.
In this procedure, a soft silicone stent is threaded through the tear drainage system to keep it open while it heals. The tube is usually removed in the clinic after 6 to 12 weeks.
Intubation is commonly used if probing does not fully resolve symptoms or as a primary option in older infants and toddlers. Reported success rates are about 85 to 95 percent.
Rarely, a blockage remains despite less invasive treatments. We may recommend a dacryocystorhinostomy to create a new drainage pathway from the tear sac into the nose, often using an endoscopic approach.
Surgical intervention is uncommon in young children and is typically considered after failure of probing and intubation, more often in older children or those with anatomical abnormalities. We tailor recommendations to your child's needs.
Caring for Your Baby at Home
We will show you how to massage the tear sac, often called Crigler massage, to encourage the membrane to open. With a clean finger, press on the small bump just below the inner corner of the eye on the side of the nose, over the tear sac.
- Wash your hands thoroughly before each massage
- Place your fingertip just below the inner corner on the side of the nose, over the lacrimal sac
- Press downward and inward toward the nose, firmly but gently, 5 to 10 strokes per session
- Repeat 2 to 3 times daily; stop and call us if the area becomes hot, very tender, and your baby has a fever
Gently wiping away discharge with a clean, warm, damp cloth helps prevent crusting and keeps your baby comfortable. Always use a fresh section of the cloth for each wipe, and clean from the inner corner outward.
Avoid using cotton balls or swabs near the eye, as loose fibers can irritate delicate tissues. Warm compresses applied for a few minutes can soften stubborn crusts and soothe mild irritation.
If an infection develops, our eye doctor may prescribe antibiotic eye drops or ointment. We will give you clear instructions on how often to apply the medication and for how long to continue treatment. Antibiotics treat infection but do not open the blocked duct.
Make sure to complete the full course of antibiotics even if symptoms improve quickly, to prevent the infection from returning. Store medications as directed and never share prescription eye drops between family members. Avoid repeated or prolonged antibiotic courses without re-evaluation.
After an in-office probing or dilation procedure, you may notice some mild bleeding or pink-tinged tears for a day or two. This is normal and should resolve quickly as the area heals.
- Tearing may temporarily increase right after the procedure
- Most babies return to normal activities within a day
- Discharge should decrease significantly within a week
- Full improvement may take several weeks as swelling subsides
- A small nosebleed or pink-tinged tears can occur the first day
- Call us for heavy bleeding, fever, or worsening swelling after 24 to 48 hours
Follow-Up Care and When to Call Us
We will ask you to bring your baby back for a check-up a few weeks after starting conservative treatment or following any procedure. These visits allow us to assess how well the tear duct is draining and whether symptoms have improved.
If we are managing your baby with observation and massage alone, we usually schedule follow-up appointments every few months until the blockage resolves. After a procedure, we may see your baby more frequently at first to ensure proper healing.
You should notice less tearing and discharge within days to weeks of starting massage or after a successful procedure. Your baby's eyelashes will stay cleaner, and the eye should look whiter and less irritated.
- Decreased overflow of tears onto the face
- No crusting or only minimal crusting in the morning
- Clear, bright eyes without redness
- No buildup of discharge during the day
Contact our office immediately for fever, significant swelling, or redness that spreads beyond the immediate eye area. If this occurs after hours or your baby seems very unwell, go to the emergency department.
Also call us right away if your baby seems to be in pain, refuses to open the affected eye, or if you notice any change in the appearance of the eye itself, such as cloudiness or bulging.
A firm, tender swelling at the inner corner with fever can be dacryocystitis and may require systemic or IV antibiotics.
If symptoms persist without worsening, or if you have questions about your baby's progress, please call to schedule a routine follow-up appointment. We are here to guide you through each step of your child's care and to adjust the treatment plan as needed.
Even if your baby seems to be improving, keeping scheduled follow-up visits ensures that the tear duct has fully opened and that no complications have developed. Regular monitoring is an important part of achieving the best outcome.
Frequently Asked Questions
The majority of babies with NLDO see the blockage open naturally by their first birthday without any intervention beyond home care. Studies show that conservative management with massage and observation is successful in a large percentage of cases, which is why we often wait before recommending procedures. Many resolve by 6 to 12 months with massage and cleaning.
We perform probing under brief general anesthesia for most infants to ensure comfort and safety. Afterward, most babies experience minimal irritation and return to their usual activities quickly, with any mild fussiness resolving within a day.
Bathing your baby as usual is safe when NLDO is present. Just take care to keep bathwater and soap out of the eyes as you normally would, and gently clean away any discharge that accumulates during or after the bath.
Current practice in 2025 often involves waiting until around 12 months of age before considering probing, since many blockages resolve on their own during the first year. However, if infections are frequent or symptoms are severe, we may recommend earlier intervention to protect your baby's comfort and health.
No. Antibiotics treat infection but do not open the obstruction. The blockage resolves naturally, with massage, or with procedures such as probing, intubation, or balloon dilation.
A dacryocele is a fluid-filled cyst of the tear sac present at birth, often seen as a bluish bump near the inner corner. It can extend into the nose and cause breathing difficulty in newborns. It needs prompt evaluation by ophthalmology and often ENT.
Getting Help for Congenital Nasolacrimal Duct Obstruction (NLDO) Treatment
If your baby shows signs of NLDO, our eye doctor can provide a thorough evaluation and guide you through the best treatment options for your family. Early assessment and appropriate care help ensure your baby's eyes stay healthy and comfortable as they grow.