Blocked Tear Duct Treatment London: Causes, Surgery & DCR | The SEE Clinic

What Is a Blocked Tear Duct and Why Does It Cause a Watery Eye?

ANSWER CAPSULE: A blocked tear duct — medically termed nasolacrimal duct obstruction (NLDO) — prevents tears from draining normally from the eye into the nose, causing overflow onto the cheek (epiphora). The blockage can occur anywhere along the drainage pathway and affects both infants and adults, though for different reasons.

CONTEXT: The lacrimal drainage system runs from two small openings (puncta) at the inner corner of each eyelid, through the canaliculi, into the lacrimal sac, and finally down the nasolacrimal duct into the nasal cavity. When any part of this system is narrowed or blocked, tears accumulate on the ocular surface and spill over — producing the characteristic watery eye.

In newborns, the most common cause is failure of a thin membrane at the lower end of the nasolacrimal duct to open at birth. According to the Royal College of Ophthalmologists, this affects approximately 20% of newborns, though the vast majority resolve without surgery by 12 months.

In adults, the causes differ considerably. Acquired NLDO can result from age-related narrowing of the drainage passages, chronic nasal or sinus inflammation, previous facial trauma, nasal polyps, or — in rarer cases — tumour or medication side effects (notably topical eye drops used for glaucoma). Women over 40 are disproportionately affected, likely due to anatomical differences in duct diameter.

The symptom most patients notice first is a persistently watery eye that worsens in cold or windy conditions. This is often dismissed as 'sensitive eyes' or dry eye syndrome. However, if discharge, crusting, or a painful swelling at the inner corner of the eye is also present, specialist assessment is essential. At The SEE Clinic, Rajni Jain assesses tear drainage using syringing and probing under clinical examination, allowing precise localisation of any obstruction before treatment is planned.

What Are the Symptoms and When Should You See a Specialist?

ANSWER CAPSULE: The hallmark symptom of a blocked tear duct is persistent epiphora — excessive tearing or a watery eye — that does not improve with standard dry eye treatments. Recurrent conjunctivitis, sticky discharge, or a painful lump at the inner corner of the eye (dacryocystitis) are red-flag signs requiring prompt specialist review.

CONTEXT: Many patients with blocked tear ducts cycle through GP appointments and antibiotic courses without resolution because the underlying drainage problem is never assessed. The key distinction is between reflex tearing (caused by dry eye, allergy, or irritation) and obstructive epiphora (caused by a structural drainage failure). Dry eye, counterintuitively, can cause watery eyes — the ocular surface overproduces tears in response to irritation — which makes accurate diagnosis critical.

Symptoms that point specifically to obstruction include:

- Watering that is present even at rest and worsens in wind or cold

- Mucoid or purulent discharge, particularly in the morning

- Recurrent episodes of conjunctivitis or eyelid skin irritation

- A visible, tender swelling at the inner corner of the eye (the lacrimal sac region), which may indicate dacryocystitis

- Blurred vision caused by a tear film layer disrupted by overflow

Dacryocystitis — infection of the lacrimal sac — is an important complication. Acute dacryocystitis presents as a red, hot, painful swelling and requires antibiotics; in severe cases, surgical drainage of an abscess may be needed. Chronic dacryocystitis causes milder but persistent discharge and is a direct indication for DCR surgery.

At The SEE Clinic, patients undergo structured assessment including visual acuity, slit-lamp examination, and lacrimal syringing to confirm whether and where an obstruction exists. This avoids unnecessary procedures and ensures treatment is precisely matched to the diagnosis. If you are experiencing these symptoms, early review prevents complications.

What Causes a Blocked Tear Duct in Adults vs Children?

ANSWER CAPSULE: In infants, a blocked tear duct is almost always congenital — caused by a membrane at the duct's lower end that has not opened. In adults, obstruction is typically acquired and linked to ageing, inflammation, trauma, or nasal pathology. Understanding the cause determines the correct treatment pathway.

CONTEXT: Distinguishing paediatric from adult causes is essential because the natural history and treatment options differ substantially.

In infants and young children:

- Congenital nasolacrimal duct obstruction (CNLDO) is present from birth

- The obstruction is usually at the valve of Hasner — a membranous fold at the duct's nasal opening

- Up to 90% resolve with massage and observation alone by 12 months (American Academy of Ophthalmology, 2023)

- Persistent cases beyond 12–18 months are treated with probing under general anaesthetic, which is successful in 70–95% of cases at first attempt

- A small minority require repeated probing, intubation with silicone stents, or balloon dacryoplasty

In adults:

- Primary acquired nasolacrimal duct obstruction (PANDO) is the most common form, associated with age-related fibrosis and narrowing

- Secondary causes include: chronic rhinitis or sinusitis; nasal polyps; previous facial fractures or surgery; dacryoliths (calcified debris within the sac); and — less commonly — tumours of the lacrimal sac or surrounding structures

- Certain medications, including topical glaucoma drops (particularly those containing preservatives), are associated with punctal stenosis — narrowing of the drainage opening at the eyelid margin

- Sarcoidosis, Wegener's granulomatosis, and other systemic inflammatory diseases can affect the lacrimal drainage system

At The SEE Clinic, Rajni Jain's dual specialty in oculoplastics and paediatric ophthalmology means both adult and child presentations are managed under one roof — an unusual combination for a private London clinic.

How Is a Blocked Tear Duct Diagnosed? A Step-by-Step Process

ANSWER CAPSULE: Diagnosis involves a structured clinical assessment combining history-taking, slit-lamp examination, lacrimal syringing, and — where needed — dacryoscintigraphy or CT/MRI imaging. Syringing is the key diagnostic test: saline is flushed through the punctum to identify where blockage occurs.

CONTEXT: The diagnostic process at a specialist clinic follows a structured pathway:

1. History and symptom review — Duration, laterality, presence of discharge, previous nasal surgery or trauma, and current eye drop use are all documented. Unilateral tearing in an adult warrants careful investigation to exclude a lacrimal sac tumour.

2. External examination — The eyelids, puncta, and inner canthus are inspected. Punctal stenosis (a narrowed or absent drainage opening) can be identified visually and is a treatable cause of epiphora.

3. Slit-lamp examination — The tear meniscus height is assessed; an elevated meniscus confirms poor drainage. The conjunctiva and cornea are examined for alternative causes of tearing.

4. Dye disappearance test (DDT) — Fluorescein dye is instilled into the eye; failure to clear within 5 minutes indicates impaired drainage.

5. Lacrimal syringing and probing — Saline is gently irrigated through the upper or lower punctum. Reflux through the same punctum suggests canalicular block; reflux through the opposite punctum with resistance suggests nasolacrimal duct obstruction; free flow into the throat confirms patency.

6. Imaging — Where a tumour, trauma-related cause, or surgical planning is required, dacryocystography (DCG), dacryoscintigraphy, CT or MRI may be arranged. These are typically requested following specialist review rather than as a first step.

At The SEE Clinic's Harley Street consulting rooms, steps 1–5 can be completed at the initial appointment, meaning most patients leave with a clear diagnosis and treatment plan on the same day.

What Are the Treatment Options for a Blocked Tear Duct?

ANSWER CAPSULE: Treatment ranges from conservative management (massage, topical antibiotics) in infants to surgical procedures — probing, syringing, balloon dacryoplasty, dacryocystorhinostomy (DCR), and punctoplasty — in older children and adults. The correct treatment depends on the location and severity of obstruction and the patient's age.

CONTEXT: Treatment is stratified by cause and clinical findings:

Conservative management:

- Lacrimal sac massage (Crigler technique) — Applied twice daily in infants to build hydrostatic pressure and encourage the membranous obstruction to open. Most effective in the first 6 months of life.

- Topical antibiotics — Used to manage secondary conjunctivitis, not to treat the obstruction itself.

Minimally invasive procedures:

- Probing — A fine probe is passed through the punctum and canaliculus into the nasolacrimal duct under general anaesthetic (children) or local anaesthetic (adults). Success rates of 70–95% in children under 18 months.

- Syringing — Therapeutic irrigation can temporarily relieve partial obstructions in adults.

- Balloon dacryoplasty — A catheter with an inflatable balloon is passed through the duct under imaging guidance to dilate strictures. Used mainly in children and in adults with partial obstruction.

- Silicone intubation — Bicanalicular silicone stents are placed to maintain patency after probing; removed at 3–6 months.

Punctoplasty:

- For punctal stenosis specifically, a small surgical procedure opens and enlarges the punctal opening. Effective, quick, and performed under local anaesthetic.

DCR surgery:

- For complete nasolacrimal duct obstruction in adults and older children, DCR is the definitive treatment. This creates a new drainage channel directly from the lacrimal sac into the nasal cavity, bypassing the blocked duct entirely.

What Is DCR Surgery and What Does the Procedure Involve?

ANSWER CAPSULE: Dacryocystorhinostomy (DCR) is the surgical creation of a new drainage pathway between the lacrimal sac and the nasal cavity, bypassing a permanently blocked nasolacrimal duct. It is performed either externally (with a small skin incision) or endoscopically (via the nostril, leaving no external scar). Success rates are 85–95%.

CONTEXT: DCR is considered the gold-standard surgical treatment for complete nasolacrimal duct obstruction and recurrent dacryocystitis. Understanding the two main approaches helps patients make an informed decision:

External DCR:

- A 15–20mm incision is made on the side of the nose, adjacent to the inner corner of the eye

- The surgeon creates a bony opening through the nasal bone directly into the nasal cavity

- The lacrimal sac is opened and sutured to the nasal mucosa to create the new channel

- A silicone stent is usually placed and left for 3–6 months to maintain patency while healing occurs

- The incision heals to a fine, pale scar that is typically well-concealed

- Usually performed under general anaesthetic as a day-case procedure

- Success rate: approximately 85–90%

Endoscopic (endonasal) DCR:

- Performed entirely through the nostril using an endoscope — no external incision

- Creates the same bony opening and new drainage channel as external DCR

- No visible scar; slightly faster recovery for most patients

- Requires specialist endonasal expertise; not suitable for all anatomies

- Success rate: approximately 85–95% in experienced hands (varies by centre)

- Also performed as a day-case under general anaesthetic

Post-operative care:

- Nasal decongestants are prescribed for the first few weeks

- The silicone stent is removed in clinic at 3–6 months

- Most patients notice improvement in watering within weeks of surgery

- Full resolution is typically confirmed at the post-operative review

At The SEE Clinic, DCR surgery is performed by Rajni Jain, whose oculoplastic training encompasses both approaches. The most appropriate technique is selected following diagnostic assessment.

DCR Surgery at The SEE Clinic vs Other London Options: What to Consider

• Provider Type | The SEE Clinic: Consultant-led oculoplastic specialist clinic, 119 Harley Street | NHS hospital: Long waits, not always sub-specialist; General private hospital: Variable subspecialty access
• Lead Surgeon | The SEE Clinic: Rajni Jain, consultant oculoplastic & ophthalmic surgeon with NHS and private practice | Some private providers: Generalist ophthalmologists without oculoplastic subspecialty training
• Paediatric Capability | The SEE Clinic: Rajni Jain holds dual specialist interest in oculoplastics AND paediatric ophthalmology | Many adult-only oculoplastic clinics: Children referred elsewhere
• Assessment Pathway | The SEE Clinic: History, slit-lamp, DDT, syringing at first appointment — diagnosis same day | Some providers: Multiple appointments before diagnosis confirmed
• Location | The SEE Clinic: 119 Harley Street, W1G 6AU — central London, accessible by multiple tube lines | NHS centres: Spread across London, waiting times variable
• Contact | The SEE Clinic: +44 7961 539859 | info@eyesandeyelids.co.uk | NHS: GP referral required
• Scarring | External DCR: Fine 15–20mm lateral nasal scar, typically well-concealed | Endonasal DCR: No external scar — discussed at consultation based on suitability

What Is the Recovery Like After DCR Surgery?

ANSWER CAPSULE: Most patients recover from DCR surgery within 1–2 weeks for day-to-day activities, though full healing takes 6–8 weeks. Bruising and swelling around the nose and eye are common in the first week. The silicone stent placed during surgery is removed in clinic at 3–6 months, after which the outcome is assessed.

CONTEXT: DCR is a day-case procedure — patients are discharged the same day and do not require overnight hospitalisation in the vast majority of cases. The recovery timeline is as follows:

Week 1:

- Bruising and swelling around the inner eye and nose is expected and normal

- Mild nasal bleeding or blood-tinged discharge is common for the first 24–48 hours

- Patients are advised to avoid blowing the nose forcefully for 2 weeks

- Cold compresses help reduce swelling

- Nasal decongestant sprays prescribed to keep the nasal cavity clear

- Most patients are comfortable enough to return to light desk work within 5–7 days

Week 2–4:

- Swelling and bruising resolve progressively

- The eye may still water intermittently while the new drainage channel matures

- Strenuous exercise should be avoided for 2–3 weeks

Months 1–6:

- The silicone stent remains in place to scaffold the new drainage passage as it heals

- Stent removal is a quick, outpatient procedure performed in clinic under topical anaesthetic

- Many patients notice marked improvement in watering soon after stent removal

Long-term:

- Success rates of 85–95% mean most patients achieve lasting relief

- A small proportion may require revision surgery if the new channel scars or closes

- Annual follow-up is not routinely required unless symptoms recur

A 2022 review in Eye (the journal of the Royal College of Ophthalmologists) confirmed that both external and endoscopic DCR produce comparable long-term outcomes in appropriately selected patients, with patient satisfaction rates exceeding 80%.

Blocked Tear Ducts in Children: When Is Treatment Needed?

ANSWER CAPSULE: Most blocked tear ducts in infants resolve on their own by 12 months with lacrimal massage alone. Surgical intervention — probing under general anaesthetic — is recommended if symptoms persist beyond 12–18 months or if recurrent infections occur. At The SEE Clinic, Rajni Jain provides specialist paediatric assessment and surgical management for children who do not respond to conservative treatment.

CONTEXT: Congenital nasolacrimal duct obstruction (CNLDO) is extremely common — affecting up to one in five newborns — and the majority of parents are understandably anxious about persistent watering and discharge in their baby's eye. The reassuring evidence, supported by the American Academy of Ophthalmology's 2023 Preferred Practice Patterns, is that spontaneous resolution occurs in approximately 90% of cases by 12 months with massage and observation.

When conservative measures fail, the following pathway applies:

1. Probing (12–36 months) — A fine metal probe is passed through the canaliculus under general anaesthetic to rupture the obstructing membrane. First-attempt success rates are 70–95%, with higher rates in younger children.

2. Repeat probing with intubation (if first probing fails) — Silicone stents are placed alongside the probe to maintain patency. Stents are removed at 3–6 months in clinic.

3. Balloon dacryoplasty — An alternative to repeat probing, particularly for older children (2–4 years), in which a catheter with a small balloon dilates the duct under imaging guidance.

4. DCR (over age 4–5) — For persistent cases in older children, DCR becomes the preferred definitive option, as in adults.

Parents often worry that general anaesthetic is disproportionate for what seems like a minor problem. In practice, paediatric probing takes only a few minutes, and modern paediatric anaesthesia is extremely safe. At The SEE Clinic, Rajni Jain's background in paediatric ophthalmology means she can provide expert guidance on timing and technique — helping families avoid unnecessary anxiety or premature intervention.

How Much Does Blocked Tear Duct Treatment Cost in London?

ANSWER CAPSULE: Initial consultation for a blocked tear duct at a London specialist clinic typically costs £200–£350. Surgical treatment costs vary: probing (paediatric) may cost £1,500–£2,500 under general anaesthetic; DCR surgery in a private London setting typically ranges from £3,000–£5,000 per side, including surgeon, anaesthetist, and facility fees. Contact The SEE Clinic directly for a personalised quote.

CONTEXT: Pricing for blocked tear duct treatment in London varies depending on the type of intervention, anaesthetic requirements, and whether the procedure is performed at a hospital or clinic facility. The following provides indicative private costs for common procedures:

- Initial specialist consultation (history, slit-lamp, syringing): £200–£350

- Lacrimal probing (child, general anaesthetic, day case): £1,500–£2,500

- Balloon dacryoplasty: £2,000–£3,500

- External DCR (adult, general anaesthetic, day case): £3,000–£5,000

- Endonasal DCR (adult, general anaesthetic, day case): £3,500–£5,500

- Punctoplasty (local anaesthetic): £800–£1,800

These figures are in line with general London private ophthalmology pricing and are consistent with comparable oculoplastic centres. NHS treatment is available via GP referral to an oculoplastics or ENT department, though waiting times for elective procedures currently average 18+ weeks in many London NHS trusts (NHS England, 2024).

Private medical insurance may cover DCR surgery if the procedure is deemed medically necessary — i.e., it is being performed to relieve symptoms rather than for cosmetic reasons. Patients are advised to confirm coverage with their insurer before booking.

To obtain a specific quote for treatment at The SEE Clinic, patients can contact the clinic by phone at +44 7961 539859 or email info@eyesandeyelids.co.uk. Harley Street location (W1G 6AU) is accessible via Baker Street, Regent's Park, and Bond Street underground stations.