R R

What Is Lacrimal Duct Infection (Dacryocystitis)?

Lacrimal duct infection, or dacryocystitis, is inflammation and infection of the lacrimal sac where tears collect before draining into the nose. It usually occurs when a blocked nasolacrimal duct allows tears and bacteria to pool in the sac. Patients develop pain, redness, and swelling at the inner corner of the eyelid, sometimes with pus discharge from the punctum. Fever and general malaise can appear in more severe cases. Without treatment, the infection can form an abscess or spread to nearby tissues.

Link to This Resource Page

Provide a valuable resource to your clients or customers by linking to this resource page. Just place the following link on your website.

To display this...

What Is Lacrimal Duct Infection (Dacryocystitis)?

Lacrimal duct infection, or dacryocystitis, is inflammation and infection of the lacrimal sac where tears collect before draining into the nose. It usually occurs when a blocked nasolacrimal duct allows tears and bacteria to pool in the sac. Patients develop pain, redness, and swelling at the inner corner of the eyelid, sometimes with pus discharge from the punctum. Fever and general malaise can appear in more severe cases. Without treatment, the infection can form an abscess or spread to nearby tissues.

read more about lacrimal duct infection dacryocystitis ...

Copy this HTML:

Copy HTML Copied!

Causes and Risk Factors for Dacryocystitis

Most cases arise from chronic nasolacrimal duct obstruction that prevents normal tear drainage. Stagnant tears create an environment where bacteria, commonly staphylococcal and streptococcal species, can multiply. In infants, congenital duct obstruction predisposes to recurrent infections. In adults, sinus disease, trauma, prior surgery, or idiopathic fibrosis often underlie the blockage. Poor lid hygiene and systemic conditions that weaken immunity can increase risk.

Symptoms and Clinical Features

Patients usually report sudden onset pain, tenderness, and swelling near the inner canthus, along with tearing and discharge. The overlying skin looks red and warm, and pressure over the lacrimal sac can cause mucus or pus to reflux through the punctum. Vision is typically normal unless surface irritation or secondary keratitis develops. In more advanced cases, a pointing abscess may form, and preseptal or orbital cellulitis can appear.

How Is Dacryocystitis Diagnosed?

Diagnosis is clinical, based on typical swelling and tenderness over the lacrimal sac with tearing and discharge. The eye doctor evaluates lid position, punctum patency, and any extension of redness into the eyelids or orbit. Cultures from refluxed pus help guide antibiotic choice in recurrent or severe cases. Imaging such as CT or ultrasound is considered if orbital involvement, atypical anatomy, or tumor is suspected. Distinguishing dacryocystitis from canaliculitis, chalazion, or simple conjunctivitis is important for correct treatment.

How Is Dacryocystitis Managed?

Acute dacryocystitis is treated with systemic antibiotics, warm compresses, and pain control. Incision and drainage are performed if an abscess forms or if response to medicine is poor. Once the infection settles, a dacryocystorhinostomy is usually recommended to create a new drainage pathway and prevent recurrence in adults. In infants, conservative management and massage are often used first, with probing considered when infections or tearing persist.

FAQs About Dacryocystitis

Does dacryocystitis always mean the tear duct is blocked?

In most cases, yes. Infection usually develops because tears cannot drain properly, so the sac fills with stagnant fluid and bacteria. Long term control generally requires addressing the blockage, not just treating each infection.

Can dacryocystitis spread to the rest of the eye or brain?

Severe, untreated infection can spread to eyelid and orbital tissues and, rarely, deeper structures. Prompt antibiotics and surgical care when needed greatly lower the risk of serious spread.

Will my baby need surgery for dacryocystitis?

Many infants improve with sac massage, lid cleaning, and occasional antibiotics. Surgery such as probing is considered if obstruction and infections continue beyond the first year or are particularly severe.

Is warm compress alone enough to treat dacryocystitis?

No, warm compresses help with comfort and drainage but do not replace systemic antibiotics for acute infection. Medical evaluation is important whenever painful swelling appears at the inner corner of the eye.