Lacrimation (tearing) - Causes, Treatment & When to See a Doctor

```html

What is Lacrimation (tearing)?

Lacrimation, commonly called tearing, is the production and overflow of tears from the lacrimal glands onto the surface of the eye. Tears keep the eye moist, provide nutrients, and help wash away foreign particles and microorganisms. While a small amount of basal (continuous) tearing is normal, excessive tearing—known as epiphora—can be uncomfortable, socially distressing, and sometimes a sign of underlying ocular or systemic disease.

Common Causes

Excessive tearing can arise from problems inside the eye, the lids, the tear‑drainage system, or from conditions elsewhere in the body. Below are the most frequently encountered causes (in alphabetical order):

• Allergic conjunctivitis – exposure to pollen, pet dander, or dust mites triggers an allergic reaction that inflames the conjunctiva and stimulates tear production.
• Blepharitis – chronic inflammation of the eyelid margin leads to irritation and reflex tearing.
• Dry eye syndrome – paradoxically, insufficient tear quality or quantity can cause a reflex overflow of tears.
• Eye infection (viral or bacterial conjunctivitis) – inflamed conjunctiva produces copious watery discharge.
• Foreign body or corneal abrasion – any object or scratch on the cornea stimulates a protective tearing response.
• Lacrimal drainage obstruction – blockage of the puncta, canaliculi, or nasolacrimal duct prevents tears from draining, causing buildup.
• Nasolacrimal duct stenosis (often congenital) – especially common in infants and some adults.
• Refractive surgery or ocular surgery – procedures such as LASIK temporarily disrupt tear film stability.
• Rosacea‑related ocular disease – facial rosacea can involve the eyelids and cause meibomian gland dysfunction, leading to tearing.
• Seasonal changes / wind, smoke, or air‑conditioned environments – irritants evaporate the tear film, prompting reflex tearing.

Associated Symptoms

Because tearing is often a response to irritation or blockage, other symptoms usually accompany it. Recognizing these can help narrow the cause.

• Redness of the sclera or conjunctiva
• Itching, burning, or gritty sensation
• Eye discharge that may be watery, mucoid, or purulent
• Swelling of the eyelids or skin around the eye
• Blurred vision that clears after blinking
• Sensitivity to light (photophobia)
• Feeling of a foreign body “stuck” in the eye
• Upper or lower eyelid crusting, especially upon waking
• Facial pain or sinus pressure (common with nasolacrimal duct issues)

When to See a Doctor

Most cases of tearing are mild and resolve with simple home care, but you should schedule an eye‑care appointment if you notice any of the following:

• Tearing that persists for more than a week despite self‑care measures.
• Accompanying pain, especially sharp or throbbing pain.
• Significant redness, swelling, or discharge that is yellow/green (suggesting infection).
• Sudden vision changes such as blurriness, double vision, or loss of vision.
• Repeated tearing in one eye only, which may indicate a blockage.
• History of recent eye injury, surgery, or contact‑lens wear.
• Systemic symptoms like fever, facial rash, or joint pain that could signal an autoimmune condition.
• In children, tearing that interferes with school activities or causes frequent eye rubbing.

Diagnosis

Evaluation begins with a thorough history and visual‑inspection, followed by targeted tests.

History taking

• Onset, duration, and pattern (continuous vs. intermittent).
• Exposure to allergens, irritants, or recent infections.
• Use of cosmetics, eye drops, contact lenses, or medications.
• Past ocular surgeries or known systemic diseases (e.g., Sjögren’s, rosacea).

Physical examination

• External eye inspection with a slit‑lamp microscope to assess lids, conjunctiva, cornea, and tear meniscus.
• Fluorescein staining to reveal corneal abrasions or ulcerations.
• Evaluation of the lacrimal drainage system (punctal exam, probing, and irrigation).
• Assessment of meibomian gland function (expressibility and quality of oil).

Special tests (when indicated)

• Schirmer test – measures basal tear production using filter paper strips.
• Tear Break‑Up Time (TBUT) – assesses tear film stability.
• Allergy testing – skin prick or serum-specific IgE if allergic conjunctivitis is suspected.
• Imaging (CT or MRI) – reserved for suspected nasolacrimal duct tumors or severe sinus disease.

Treatment Options

Therapy is directed at the underlying cause and at relieving the symptom of excess tearing.

Medical (prescription) treatments

• Antihistamine or mast‑mast cell stabilizer eye drops – for allergic conjunctivitis (e.g., olopatadine, ketotifen).<sup>1</sup>
• Topical antibiotics or antiviral agents – for bacterial or viral conjunctivitis (e.g., trimethoprim‑polymyxin B, ganciclovir).<sup>2</sup>
• Corticosteroid eye drops – short‑term use for severe inflammation under specialist supervision.
• Artificial tears and lubricating ointments – restore tear film in dry eye or after surgery.
• Oral doxycycline or tetracycline – reduces inflammation of the meibomian glands in rosacea‑related ocular disease.<sup>3</sup>
• Lacrimal duct probing or balloon dacryocystoplasty – performed by an ophthalmologist or otolaryngologist to relieve obstruction.
• Silicone intubation or dacryocystorhinostomy (DCR) – surgical options for chronic nasolacrimal duct blockage.

Home and Lifestyle Remedies

• Apply warm compresses (5‑10 min, 2‑3 times/day) to improve meibomian gland oil flow.
• Practice lid hygiene: gentle massage and cleaning with diluted baby shampoo or commercial lid wipes.
• Use preservative‑free artificial tears every 2–4 hours; increase frequency in dry environments.
• Avoid known irritants – smoke, wind, chlorinated pools, and strong fragrances.
• Wear wrap‑around sunglasses outdoors to reduce wind‑related tearing.
• For allergy sufferers, keep windows closed, use HEPA filters, and consider oral antihistamines.
• Stay hydrated and maintain a balanced omega‑3 fatty‑acid intake (e.g., fish oil) which may improve tear quality.

Prevention Tips

While some causes (e.g., anatomical blockage) cannot be fully prevented, many triggers are modifiable.

• Maintain good eyelid hygiene, especially if you have blepharitis or rosacea.
• Replace eye makeup every 3 months and avoid sharing cosmetics.
• Remove contact lenses before swimming or in dusty environments.
• Follow proper contact‑lens cleaning protocols and replace lenses as prescribed.
• Use humidifiers in dry indoor climates to preserve tear film stability.
• Control allergic rhinitis with nasal corticosteroids or antihistamines to reduce ocular symptoms.
• Schedule routine eye exams (every 1–2 years) to detect early lid or drainage abnormalities.
• Manage systemic conditions such as diabetes, autoimmune disease, and thyroid disorders, which can affect tear production.

Emergency Warning Signs

If you experience any of the following, seek immediate medical attention (e.g., urgent‑care clinic or emergency department). Prompt evaluation can prevent permanent eye damage.

• Sudden, severe eye pain or a feeling of “grabbing” inside the eye.
• Rapid vision loss or a large area of blurry vision that does not improve with blinking.
• Sudden onset of a white or yellow discharge with intense redness (possible bacterial keratitis).
• Eye trauma with bleeding, a visible foreign object, or a puncture wound.
• Swelling that spreads to the cheeks or under the eye, especially with fever (possible orbital cellulitis).
• Persistent tearing accompanied by facial drooping, weakness, or numbness (could indicate a neurological emergency).

---

Sources:

1. Mayo Clinic. “Allergic conjunctivitis.” Mayoclinic.org. Accessed May 2026.
2. Cleveland Clinic. “Conjunctivitis (Pink Eye).” my.clevelandclinic.org. Accessed May 2026.
3. American Academy of Ophthalmology. “Ocular Rosacea.” aao.org. Updated 2024.
4. National Eye Institute. “Dry Eye.” nei.nih.gov. Accessed May 2026.
5. World Health Organization. “Trachoma and Eye Care.” who.int. 2023.

```