Disease Description (Causes and Symptoms)
- Definition: Nasolacrimal duct obstruction is a condition in which tears produced in the eye cannot drain toward the nose through the nasolacrimal duct, becoming stagnant or flowing back.
- Causes/Pathophysiology:
- Newborns (congenital): The distal part of the nasolacrimal duct is often obstructed, and spontaneous opening within 2–4 months after birth is common (most cases improve). In some cases, the obstruction persists and progresses to punctal or nasolacrimal duct obstruction.
- Adults (acquired): Causes include chronic dacryocystitis, chronic sinusitis, trauma, post-inflammatory adhesions, and age-related stenosis.
- Pathophysiology: If any part of the tear drainage pathway (punctum → canaliculus → lacrimal sac → nasolacrimal duct) becomes stenotic or obstructed, tears may accumulate and reflux and infection may occur.
- Main symptoms:
- Persistent tearing (epiphora), eye discharge, tenderness or swelling around the lacrimal sac, and reflux of mucoid or purulent discharge (through the punctum)
- Newborns: Large amounts of eye discharge and tearing (most improve with conservative treatment)
- Prevalence: Relatively common among ophthalmic diseases and frequently observed in clinical practice.
Treatment Methods
- Conservative treatment (early stage/newborns):
- Lacrimal sac massage and hygiene care; topical or systemic antibiotics (when infection is present)
- In many newborns (most cases), spontaneous opening within a few months or massage alone leads to improvement (a high improvement rate has been reported in the literature; the provided material reports approximately 90% improvement).
- Procedural treatment:
- Lacrimal duct irrigation (syringing/irrigation): Used to assess whether an obstruction is present and its location, and has a therapeutic role in some patients
- Guidewire-assisted probing toward the nasal cavity: Performed as an initial nonsurgical treatment, particularly in children. Success rates vary depending on age and the degree of obstruction.
- Silicone intubation: Selected after recurrent obstruction or failed probing; the tube is left in place for a specified period.
- Surgical treatment:
- Dacryocystorhinostomy (DCR): Definitive treatment through reconstruction of the nasolacrimal drainage pathway. Both external and endoscopic (nasal endoscopic) approaches are available, and endoscopic surgery has the advantage of leaving no visible scar. It is a standard treatment with a high success rate for recurrent obstruction or chronic dacryocystitis.
- Complications and precautions:
- Delayed treatment may lead to recurrent infection (chronic dacryocystitis), surrounding cellulitis (perilacrimal abscess), drainage, and cosmetic problems. In severe cases, serious complications such as orbital cellulitis may occur.
- Before surgery, it is necessary to check for coexisting chronic upper respiratory tract conditions (such as sinusitis).
- Lifestyle management:
- Keep the area around the eyes clean, avoid rubbing the eyes vigorously, and seek prompt antibiotic treatment and medical advice if infection occurs.
Checklist Before an Outpatient Visit (Including Sample Questions)
- Items/records to prepare:
- A list of currently used medications (especially antibiotics and anticoagulants), and a history of previous surgery and ophthalmic or sinus-related conditions
- The time of symptom onset and course (when they began, intermittent or persistent, aggravating factors), the nature of the discharge (clear/mucoid/purulent), and records of changes in the amount of tearing
- Bring any previous test results, if available (such as lacrimal duct irrigation, dacryography, CT, or endoscopic findings)
- Photographs of tearing or swelling around the eyes, if available, may help with diagnosis
- Information to show the doctor during the visit:
- When symptoms worsen (e.g., after a cold), previous treatments (massage, antibiotics, or probing), and their effects
- Sample questions (patients should make notes to bring with them):
- When did the symptoms begin? In what situations do they become worse?
- Have there been any changes in the color or smell of the discharge?
- Have you ever received treatment for the same symptoms before?
General Sample Questions to Ask the Doctor
- How likely is this condition to improve spontaneously? (Especially in children)
- What tests do you recommend for the current symptoms (such as lacrimal duct irrigation or dacryography)?
- What are the expected effects and risks (side effects) of the medication or surgery you are prescribing/recommending?
- If surgery is needed, which method (external DCR vs. endoscopic) is appropriate, and what is the prognosis?
- What is the possibility of recurrence, and what additional treatments are available if it recurs?
Disease-Specific Sample Questions
- Questions for caregivers of newborns/infants:
- In our child's case, how long is it safe to wait, and when should we consider a procedure (probing)?
- For adult patients:
- Since chronic sinusitis or nasal disease is also present, should nasal and sinus treatment (otolaryngologic treatment) be received at the same time?