Dacryocystitis (Lacrimal Sac Infection)
Dacryocystitis is an infection and inflammation of the lacrimal sac, usually caused by blockage of the tear drainage system. It commonly presents with pain, redness, swelling near the inner corner of the eye, and discharge.
What Is Dacryocystitis?
Dacryocystitis is inflammation and infection of the lacrimal sac, a small structure that collects tears before they drain into the nose.
The condition most commonly occurs when the nasolacrimal duct becomes blocked, causing tears and bacteria to accumulate within the lacrimal sac.
Stagnant tears create an environment where bacteria can multiply, resulting in swelling, tenderness, redness, and discharge.
Dacryocystitis can occur at any age and may present as an acute painful infection or as a chronic recurrent condition.
Lacrimal Drainage Anatomy
The lacrimal drainage system transports tears away from the eye surface into the nasal cavity.
Lacrimal Puncta
Small openings on the eyelid margins that collect tears.
Canaliculi
Channels that carry tears toward the lacrimal sac.
Lacrimal Sac
The structure affected by dacryocystitis.
Nasolacrimal Duct
The pathway carrying tears into the nasal cavity.
Normal Tear Drainage Physiology
Normal tear drainage prevents fluid stagnation and reduces infection risk.
Tear Production
The lacrimal glands produce tears that protect the ocular surface.
Tear Collection
Tears enter through the puncta located on the eyelids.
Lacrimal Sac Passage
Tears temporarily pass through the lacrimal sac.
Nasal Drainage
Tears exit through the nasolacrimal duct into the nose.
Types of Dacryocystitis
Dacryocystitis can be classified based on timing, cause, and clinical presentation.
Acute Dacryocystitis
A sudden infection causing painful swelling, redness, and discharge.
Chronic Dacryocystitis
Long-standing inflammation associated with persistent tearing and discharge.
Congenital Dacryocystitis
Occurs in infants, usually associated with congenital nasolacrimal duct obstruction.
Primary Dacryocystitis
Occurs due to tear drainage dysfunction without another major cause.
Secondary Dacryocystitis
Results from trauma, surgery, tumors, or inflammatory conditions.
Causes of Dacryocystitis
Most cases develop because impaired tear drainage allows bacteria to collect within the lacrimal sac.
Nasolacrimal Duct Obstruction
The most common underlying cause.
Bacterial Infection
Bacteria multiply within stagnant tears.
Trauma
Injury may disrupt normal tear drainage.
Previous Surgery
Procedures involving the nose or eyelids may affect drainage.
Inflammatory Disease
Chronic inflammation may narrow the drainage pathway.
Risk Factors
Blocked Tear Duct
The strongest risk factor for developing dacryocystitis.
Older Age
Acquired drainage narrowing becomes more common with aging.
Chronic Sinus Disease
Nasal inflammation may contribute to obstruction.
Previous Trauma
Facial injuries may alter lacrimal anatomy.
Congenital NLDO
Infants with blocked tear ducts are at increased risk.
Clinical Appearance
Dacryocystitis typically affects the area near the inner corner of the eye where the lacrimal sac is located.
Medial Canthal Swelling
Localized swelling appears near the bridge of the nose.
Redness
Inflammation causes skin and tissue redness.
Tenderness
The area may be painful to touch.
Discharge
Pressure on the lacrimal sac may produce pus or mucus.
Symptoms & Clinical Signs
Dacryocystitis presents with findings caused by inflammation and infection of the lacrimal sac. Symptoms vary depending on whether the condition is acute or chronic.
Common Symptoms
- Pain near the inner corner of the eye
- Excessive tearing (epiphora)
- Mucous or pus-like discharge
- Redness around the nose and eyelid
- Swelling near the lacrimal sac
- Foreign body sensation
- Recurrent episodes of tearing
Clinical Findings
- Tender medial canthal swelling
- Warmth and erythema of surrounding skin
- Lacrimal sac tenderness
- Regurgitation of discharge with pressure
- Elevated tear lake
- Crusting of eyelid margins
Acute vs Chronic Dacryocystitis
The clinical presentation differs depending on whether inflammation is sudden or long-standing.
Acute Dacryocystitis
- Rapid onset
- Painful swelling
- Significant redness
- Tender lacrimal sac
- Possible fever
- May progress to abscess formation
Chronic Dacryocystitis
- Long-standing tearing
- Intermittent discharge
- Mild irritation
- Less dramatic swelling
- Recurrent symptoms
- Often associated with obstruction
Patient History Evaluation
A detailed history helps determine the cause of infection and identify factors that increase recurrence risk.
Onset of Symptoms
Sudden painful swelling suggests acute infection, while gradual tearing may suggest chronic disease.
Duration
The length of symptoms helps distinguish acute inflammation from chronic obstruction.
Previous Episodes
Repeated infections suggest persistent tear drainage dysfunction.
Trauma History
Facial injuries may contribute to acquired obstruction.
Nasal Symptoms
Sinus disease or nasal obstruction may affect tear drainage.
Previous Procedures
Prior lacrimal, nasal, or eyelid surgery may be relevant.
Clinical Examination
Examination focuses on identifying infection, obstruction, and associated ocular or nasal abnormalities.
External Examination
Evaluates swelling, redness, facial asymmetry, and skin changes.
Slit Lamp Examination
Assesses eyelids, conjunctiva, tear film, and ocular surface.
Lacrimal Sac Palpation
Pressure may produce discharge through the puncta.
Nasal Examination
Evaluates nasal factors affecting drainage.
Lacrimal Sac Evaluation
Assessment of the lacrimal sac helps determine the severity and source of infection.
Palpation
Tenderness suggests active inflammation.
Regurgitation Test
Pressure may express mucus or pus from the puncta.
Discharge Assessment
The appearance of discharge may guide management.
Obstruction Evaluation
Determines whether blockage is contributing to infection.
Diagnosis of Dacryocystitis
Diagnosis is usually clinical, based on history and examination findings.
Clinical Diagnosis
Classic symptoms and examination findings are often sufficient.
Lacrimal Testing
Evaluates underlying tear drainage obstruction.
Culture Testing
May be performed in severe, recurrent, or unusual infections.
Imaging
Used when anatomy or complications require further evaluation.
Microbiology of Dacryocystitis
Bacterial organisms commonly cause dacryocystitis due to bacterial growth in stagnant tears.
Staphylococcus Species
Common skin bacteria associated with infection.
Streptococcus Species
Can contribute to acute inflammatory presentations.
Gram-Negative Bacteria
May occur in certain infections or recurrent cases.
Imaging Evaluation
Imaging is not required for every case but may help identify structural abnormalities or complications.
Dacryocystography
Visualizes the tear drainage pathway using contrast imaging.
Computed Tomography (CT)
Evaluates surrounding orbital and sinus structures.
Nasal Endoscopy
Examines the nasal opening of the drainage system.
Ultrasound
May evaluate lacrimal sac abnormalities in selected cases.
Differential Diagnosis
Several conditions can mimic dacryocystitis and should be considered during evaluation.
Preseptal Cellulitis
Eyelid infection without primary lacrimal sac involvement.
Orbital Cellulitis
More serious infection involving tissues behind the orbital septum.
Canaliculitis
Infection involving the canalicular drainage system.
Conjunctivitis
Surface inflammation causing redness and discharge.
Lacrimal Sac Tumor
Rare masses may present with tearing or bloody discharge.
Inflamed Skin Lesion
Nearby facial infections may resemble lacrimal inflammation.
Treatment Options for Dacryocystitis
Treatment depends on whether the infection is acute or chronic, the severity of inflammation, and whether an underlying tear drainage obstruction is present.
Acute Infection Management
Focuses on controlling infection, reducing inflammation, and preventing spread.
Chronic Disease Management
Addresses the underlying drainage abnormality causing recurrent inflammation.
Surgical Correction
Restores tear drainage when obstruction persists.
Management of Acute Dacryocystitis
Acute dacryocystitis requires prompt treatment to control infection and prevent complications.
Antibiotic Therapy
Antibiotics are used to treat bacterial infection of the lacrimal sac.
Warm Compresses
May improve comfort and encourage drainage.
Pain Management
Supportive treatment may reduce discomfort during acute inflammation.
Monitoring
Patients are monitored for worsening infection or abscess formation.
Antibiotic Therapy
Antibiotics are an important component of treatment, especially in acute dacryocystitis.
Topical Antibiotics
May help manage associated ocular surface discharge.
Oral Antibiotics
Often required when there is significant lacrimal sac infection.
Intravenous Antibiotics
May be considered for severe infections or spreading inflammation.
Warm Compresses and Supportive Care
Supportive measures help reduce discomfort and assist healing.
Warm Compresses
Apply gentle warmth to improve comfort and encourage drainage.
Eyelid Hygiene
Keeps surrounding tissues clean and reduces irritation.
Tear Management
Cleaning excess tearing and discharge improves comfort.
Lacrimal Sac Abscess Management
In some cases, infection progresses to formation of an abscess within or around the lacrimal sac.
Recognition
Increasing swelling, pain, and tenderness may suggest abscess formation.
Drainage
Surgical drainage may be required if an abscess develops.
Infection Control
Antibiotic therapy continues to treat the underlying infection.
Treatment of Chronic Dacryocystitis
Chronic dacryocystitis is usually caused by persistent tear drainage obstruction and requires treatment of the underlying problem.
Identify Obstruction
Evaluation determines the location and severity of drainage impairment.
Control Inflammation
Medical therapy may reduce irritation and discharge.
Restore Drainage
Procedures may be required for long-term resolution.
Lacrimal Irrigation and Dilation
Irrigation may be performed to evaluate and sometimes improve tear drainage.
Diagnostic Role
Determines whether the drainage pathway is open or blocked.
Partial Obstruction
May provide temporary improvement in selected cases.
Complete Obstruction
Usually requires surgical correction.
Dacryocystorhinostomy (DCR)
Dacryocystorhinostomy is the definitive surgical treatment for many patients with chronic dacryocystitis caused by nasolacrimal duct obstruction.
Purpose
Creates a new drainage pathway between the lacrimal sac and nasal cavity.
Indication
Used for persistent obstruction, recurrent infection, and chronic symptoms.
Outcome
Provides long-term improvement in tear drainage for many patients.
External Dacryocystorhinostomy
External DCR creates a new tear drainage opening through a small incision near the nose.
Surgical Approach
Performed through a skin incision near the medial canthus.
Advantages
Provides direct visualization of the lacrimal sac anatomy.
Considerations
May result in a small external scar.
Endoscopic Dacryocystorhinostomy
Endoscopic DCR creates a new drainage pathway through the nasal cavity without an external skin incision.
Nasal Approach
Uses endoscopic instruments through the nasal passage.
Cosmetic Benefit
Avoids an external facial incision.
Patient Selection
Choice depends on anatomy and surgeon preference.
Surgical Considerations
Timing
Surgery may be delayed until acute infection is controlled unless urgent drainage is needed.
Underlying Cause
Successful treatment requires addressing the drainage problem.
Follow-Up
Monitoring ensures proper healing and drainage.
Complications of Treatment
Persistent Infection
Infection may continue if obstruction remains unresolved.
Recurrent Obstruction
Scar formation may narrow the drainage pathway again.
Bleeding
Possible after surgical procedures.
Discomfort
Temporary irritation may occur during healing.
Long-Term Management
Monitor Symptoms
Persistent tearing or discharge should be reassessed.
Prevent Recurrence
Managing underlying obstruction reduces future infections.
Maintain Hygiene
Proper eyelid care supports comfort.
Follow-Up Care
Regular evaluation ensures successful treatment.
Complications of Dacryocystitis
Untreated or recurrent dacryocystitis can lead to complications involving the lacrimal system, surrounding tissues, and overall ocular health.
Lacrimal System Complications
- Recurrent lacrimal sac infection
- Chronic tearing
- Persistent discharge
- Lacrimal sac enlargement
- Chronic inflammation
Spread of Infection
- Lacrimal sac abscess
- Preseptal cellulitis
- Orbital cellulitis
- Skin fistula formation
- Systemic infection in severe cases
Acute Dacryocystitis Complications
Acute infection requires careful monitoring because inflammation can extend beyond the lacrimal sac.
Lacrimal Abscess
Collection of pus within the lacrimal sac causing increasing swelling and pain.
Cellulitis
Infection may spread into surrounding eyelid and facial tissues.
Fistula Formation
Chronic infection may create an abnormal drainage pathway through the skin.
Emergency Warning Signs
Certain symptoms require urgent medical evaluation because they may indicate spreading infection or serious complications.
Rapidly Increasing Swelling
Rapid enlargement near the nose or eyelid may indicate worsening infection.
Severe Pain
Increasing pain may suggest abscess formation or deeper infection.
Fever
May indicate systemic involvement.
Vision Changes
Blurred vision, decreased vision, or eye movement pain requires evaluation.
Eye Movement Limitation
May indicate orbital involvement.
Bloody Discharge
Requires assessment for unusual causes.
Prognosis
The prognosis of dacryocystitis is generally excellent when infection is treated appropriately and the underlying drainage problem is addressed.
Acute Cases
Most improve with appropriate antibiotic therapy and supportive treatment.
Chronic Cases
Long-term success usually requires correction of tear drainage obstruction.
Surgical Outcomes
DCR provides effective long-term relief for many patients.
Early Treatment
Prompt management reduces risk of complications.
Factors Affecting Outcome
Cause of Obstruction
The underlying reason for poor drainage affects treatment success.
Severity of Infection
More advanced infections may require additional management.
Timing of Treatment
Early intervention reduces complications.
Follow-Up Care
Monitoring improves long-term outcomes.
Clinical Pearls
- Dacryocystitis is usually associated with impaired tear drainage.
- Painful swelling near the medial canthus is a classic finding.
- Chronic tearing may be the first sign of underlying obstruction.
- Antibiotics treat infection but do not correct mechanical blockage.
- Recurrent dacryocystitis should prompt evaluation of the nasolacrimal duct.
- Bloody tears require further investigation.
- DCR is the definitive treatment for many chronic cases.
- Infants with dacryocystitis commonly have congenital nasolacrimal duct obstruction.
Common ICD-10 Codes
| Code | Description |
|---|---|
| H04.30 | Unspecified inflammation of lacrimal passages |
| H04.31 | Acute inflammation of lacrimal passages |
| H04.41 | Chronic inflammation of lacrimal passages |
| H04.69 | Other disorders of lacrimal system |
| H04.55 | Acquired stenosis of nasolacrimal duct |
Patient Education: Caring for Dacryocystitis
Complete Medications
Take prescribed antibiotics exactly as directed.
Monitor Symptoms
Watch for increasing pain, swelling, or redness.
Maintain Hygiene
Keep eyelids and surrounding skin clean.
Follow Up
Persistent tearing may require evaluation of the drainage system.
Frequently Asked Questions
What causes dacryocystitis?
Most cases occur because a blocked tear duct allows bacteria to accumulate in the lacrimal sac.
Is dacryocystitis serious?
It is usually treatable, but untreated infections can spread to surrounding tissues.
Can antibiotics cure dacryocystitis permanently?
Antibiotics treat infection but may not correct the underlying tear drainage problem.
Why does dacryocystitis keep coming back?
Recurrent episodes often occur because the tear duct remains blocked.
When is surgery needed?
Surgery is considered when obstruction causes persistent or recurrent disease.
Related Eye Conditions
Nasolacrimal Duct Obstruction
Blocked tear drainage pathway commonly associated with dacryocystitis.
Congenital NLDO
Infant tear drainage obstruction causing dacryocystitis risk.
Epiphora
Excessive tearing caused by drainage dysfunction.
Canaliculitis
Infection of the canalicular tear drainage system.
Preseptal Cellulitis
Infection of eyelid tissues that may resemble dacryocystitis.
Lacrimal System Tumors
Rare lesions affecting tear drainage structures.
Medical Disclaimer
The information provided by Kardia Vision is intended for educational purposes only and should not replace professional medical advice, diagnosis, or treatment.
Patients experiencing painful swelling near the eye, fever, vision changes, rapid worsening redness, or persistent discharge should seek evaluation from a qualified eye care professional.
Kardia Vision provides evidence-based eye health education for patients, students, and healthcare professionals.