Lacrimation (Watering Eyes): A Comprehensive Guide

What is Lacrimation (watering eyes)?

Lacrimation, commonly called watering eyes or epiphora, is the production of excess tears that overflow onto the face. Tears are essential for eye health – they lubricate, nourish, and help clear debris and microbes. When the balance between tear production and drainage is disrupted, tears accumulate and spill over. While occasional tearing is normal (e.g., when cutting onions or laughing), persistent or excessive lacrimation can indicate an underlying ocular or systemic condition.

Common Causes

Below are 8‑10 frequent reasons why a person may experience chronic or intermittent watering eyes:

• Dry‑eye syndrome (or ocular surface irritation) – paradoxically, a deficient tear film can trigger reflex tearing.
• Allergic conjunctivitis – pollen, dust mites, pet dander, or molds cause histamine release and watery discharge.
• Infectious conjunctivitis – bacterial or viral agents produce a watery or purulent discharge.
• Blocked tear drainage (nasolacrimal duct obstruction) – congenital or acquired blockage leads to tear buildup.
• Eyelid malpositions – ectropion (eyelid turns out) or entropion (eyelid turns in) disrupts tear spread and drainage.
• Blepharitis – inflammation of the eyelid margin can cause irritation and reflex tearing.
• Contact lens wear – improper fit, deposits, or hypersensitivity can stimulate tear production.
• Environmental irritants – wind, smoke, air‑conditioned rooms, or chemicals.
• Foreign body or corneal abrasion – any insult to the cornea evokes a protective tearing response.
• Systemic diseases – rheumatoid arthritis, Sjögren’s syndrome, thyroid eye disease, or neurological disorders (e.g., facial nerve palsy) can affect tear dynamics.

Associated Symptoms

Watering eyes often appear with other ocular or systemic clues. Recognizing these helps narrow the cause.

• Soreness, burning, or itching of the eye.
• Redness (hyperemia) of the conjunctiva.
• Gritty or foreign‑body sensation.
• Discharge that is clear, mucoid, or purulent.
• Blurred vision that improves when blinking.
• Sensitivity to light (photophobia).
• Swelling of the eyelids or surrounding skin.
• Feeling of a “blocked” tear duct (fullness near the inner corner).
• Systemic signs such as nasal congestion, sneezing, or skin rash (allergy).

When to See a Doctor

Most cases of mild lacrimation are self‑limiting, but you should schedule an eye‑care appointment promptly if you notice any of the following:

• Tearing that persists for more than two weeks despite home measures.
• Severe eye pain, redness that spreads, or a sudden loss of vision.
• Discharge that is thick, yellow/green, or foul‑smelling (possible infection).
• Signs of a blocked tear duct—persistent “fullness” near the inner canthus, swelling, or recurrent conjunctivitis.
• Associated fever, facial swelling, or neurological symptoms (e.g., facial droop).
• If you wear contact lenses and experience new tearing, irritation, or vision changes.

Diagnosis

Eye specialists (ophthalmologists or optometrists) use a systematic approach to determine the cause of lacrimation.

1. Medical History

• Duration, frequency, and triggers of tearing.
• Allergy history, medication use (e.g., antihistamines, isotretinoin), systemic illnesses.
• Contact lens wear, recent eye trauma, or surgeries.

2. Visual Examination

• Visual acuity test to rule out refractive issues.
• Slit‑lamp biomicroscopy – magnified view of the cornea, conjunctiva, eyelids, and tear film.
• Assessment of eyelid position, blink rate, and meibomian gland function.

3. Tear‑Film Tests

• Schirmer test – filter paper strip placed under the lower eyelid measures tear production.
• Fluorescein staining – highlights corneal abrasions or dry‑spot areas.
• Tear break‑up time (TBUT) – evaluates tear stability.

4. Drainage Evaluation

• Dye disappearance test – fluorescein dye is placed in the tear lake; normal drainage clears it within 5 minutes.
• Nasolacrimal duct probing or irrigation if obstruction is suspected.

5. Additional Tests (when indicated)

• Allergy skin testing or serum specific IgE.
• Culture of discharge for bacterial/fungal infection.
• Imaging (CT or MRI) for orbital or sinus disease.

Treatment Options

Treatment is tailored to the underlying cause and may combine medical, procedural, and lifestyle measures.

1. General Measures (Home Care)

• Apply a warm compress (5‑10 minutes) 2–3 times daily to loosen debris and improve meibomian gland flow.
• Practice good eyelid hygiene – gentle lid scrubs with diluted baby shampoo or commercial lid wipes.
• Use a humidifier in dry indoor environments.
• Avoid smoke, wind, and direct air‑conditioning toward the eyes.
• Take breaks during prolonged screen time (20‑20‑20 rule) to reduce reflex tearing.

2. Pharmacologic Therapy

• Artificial tears (preservative‑free) – 4–6 times daily for dry‑eye–related watering.
• Antihistamine or mast‑cell stabilizer eye drops – for allergic conjunctivitis (e.g., olopatadine, ketotifen).
• Topical antibiotics – for bacterial conjunctivitis (e.g., erythromycin ointment, fluoroquinolone drops).
• Topical corticosteroids – short‑term use for severe inflammation under physician supervision.
• Cyclosporine 0.05% or lifitegrast – immunomodulators for chronic dry‑eye disease.
• Oral antihistamines – adjunct for systemic allergy control.

3. Procedural Interventions

• Eyelid surgery – Correct ectropion, entropion, or ptosis that impairs tear drainage.
• Nasolacrimal duct probing or intubation – Restores drainage in partial or complete obstruction.
• Punctal plugs – Small silicone or collagen devices inserted into tear‑drainage puncta to retain tears (used mainly for dry‑eye‑related reflex tearing).
• Lacrimal gland cauterization (thermal or laser) – Reduces tear production in severe, refractory cases.

4. Contact Lens Management

• Switch to a daily‑disposable lens or ensure proper cleaning regimen.
• Consider lenses with higher oxygen permeability (e.g., silicone hydrogel).
• Temporary discontinuation to allow ocular surface recovery.

Prevention Tips

While some causes (e.g., anatomy) cannot be altered, many triggers are modifiable.

• Maintain indoor humidity between 40‑60 %.
• Wear protective sunglasses on windy or sunny days.
• Limit exposure to known allergens; keep windows closed during high pollen counts.
• Stay hydrated – adequate fluid intake supports tear production.
• Follow the 20‑20‑20 rule: every 20 minutes, look at something 20 feet away for at least 20 seconds.
• Replace eye makeup regularly; avoid applying it near the tear duct.
• Practice regular eyelid hygiene, especially if you have blepharitis or rosacea.
• Schedule routine eye exams — early detection of eyelid malposition or nasolacrimal blockage can prevent chronic watering.

Emergency Warning Signs

References

1. Mayo Clinic. “Dry eye.” Updated 2023. https://www.mayoclinic.org
2. Cleveland Clinic. “Allergic Conjunctivitis.” 2022. https://my.clevelandclinic.org
3. American Academy of Ophthalmology. “Epiphora (excessive tearing).” 2021. https://www.aao.org
4. National Eye Institute (NIH). “Nasolacrimal Duct Obstruction.” 2020. https://www.nei.nih.gov
5. Centers for Disease Control and Prevention. “Allergy and Asthma Data.” 2023. https://www.cdc.gov
6. World Health Organization. “Eye health.” 2022. https://www.who.int