Eye Watering (Epiphora) – What You Need to Know
What is Eye watering?
Eye watering, medically termed epiphora, is the excessive production or inadequate drainage of tears that results in a noticeable overflow onto the cheeks. Tears are essential for lubricating the eye, removing debris, and protecting against infection. Under normal circumstances, the lacrimal glands produce a small, steady tear film that spreads across the eye surface and drains through the puncta (tiny openings at the inner eyelid), the canaliculi, and finally the nasolacrimal duct into the nose. When any part of this system is disrupted, tears can accumulate and spill over.
While occasional tearing—for example, when cutting onions or after laughing—is normal, persistent or sudden onset of watery eyes can indicate an underlying ocular or systemic condition that may require attention.
Sources: Mayo Clinic; American Academy of Ophthalmology (AAO).
Common Causes
The reasons for eye watering are many and range from benign to serious. Below are the most frequently encountered causes:
- Dry Eye Syndrome – Paradoxically, a deficient tear film can trigger reflex tearing as the eye attempts to compensate.
- Allergic Conjunctivitis – Pollen, pet dander, or mold cause inflammation and watery discharge.
- Infectious Conjunctivitis – Bacterial or viral infections produce a thin, watery or purulent discharge.
- Blepharitis – Inflammation of the eyelid margins interferes with tear spreading and drainage.
- Blocked Nasolacrimal Duct – Congenital or acquired obstruction prevents drainage, leading to constant tearing.
- Ectropion or Entropion – Malposition of the eyelid alters tear flow; ectropion (outward turning) exposes the conjunctiva, while entropion (inward turning) causes irritation.
- Foreign Body or Corneal Abrasion – Any irritation of the corneal surface stimulates reflex tearing.
- Contact Lens Irritation – Poor fit, deposits, or hypersensitivity can provoke tearing.
- Environmental Irritants – Smoke, wind, chlorine, or dry air may trigger reflex tearing.
- Systemic Conditions – Auto‑immune diseases (e.g., Sjögren’s syndrome), thyroid eye disease, or neurologic disorders affecting facial nerves.
Associated Symptoms
Eye watering rarely occurs in isolation. Patients often experience one or more of the following accompanying signs, which help clinicians narrow the cause:
- Redness or hyperemia of the conjunctiva
- Itching, burning, or gritty sensation
- Discharge that is clear, mucoid, or purulent
- Swelling of the eyelids (eyelid edema)
- Blurred vision that improves when blinking
- Sensitivity to light (photophobia)
- Drooping of the eyelid (ptosis) in severe infections or nerve palsy
- Pain with eye movement (often with corneal injury)
- Feeling of a “foreign body” stuck in the eye
When to See a Doctor
Most cases of mild tearing improve with home care, but certain scenarios warrant prompt professional evaluation:
- Watery eyes that persist for more than a week despite self‑care.
- Accompanying severe redness, pain, or vision changes.
- Discharge that becomes thick, yellow/green, or foul‑smelling (possible bacterial infection).
- History of recent eye injury, surgery, or contact lens wear.
- Recurrent tearing in one eye only, suggesting a duct obstruction.
- Swelling around the eye that does not improve with antihistamines.
- Systemic symptoms such as fever, facial swelling, or neurological changes.
In these situations, an eye care professional (optometrist or ophthalmologist) should be consulted to prevent complications such as corneal ulceration or chronic infection.
Source: CDC – “Signs Your Eyes May Need Medical Attention.”
Diagnosis
Evaluation of eye watering involves a systematic approach that combines patient history, visual inspection, and specialized tests.
1. History Taking
- Onset, duration, and pattern (continuous vs. intermittent).
- Exposure to allergens, irritants, or recent infections.
- Contact lens use, ocular surgeries, or trauma.
- Associated systemic illnesses (e.g., autoimmune disease, sinusitis).
2. External Examination
- Inspection of eyelids for malpositions (ectropion/entropion), swelling, or crusting.
- Assessment of conjunctival redness, punctal patency, and tear film quality.
3. Diagnostic Tests
- Fluorescein staining – Highlights corneal abrasions or epithelial defects.
- Schirmer test – Measures tear production; values <10 mm/5 min suggest dry eye.
- Tear Break‑Up Time (TBUT) – Evaluates tear film stability.
- Dacryocystography or CT imaging – Used when nasolacrimal duct obstruction is suspected.
- Microbiologic cultures – When purulent discharge suggests bacterial conjunctivitis.
Treatment Options
Treatment is directed at the underlying cause. Below are evidence‑based interventions, ranging from simple home measures to surgical procedures.
1. Home & Lifestyle Measures
- Warm compresses – 5–10 minutes, 2‑3 times daily, relieve blepharitis and meibomian gland dysfunction.
- Lid hygiene – Gentle cleansing with diluted baby shampoo or over‑the‑counter lid scrubs.
- Artificial tears – Preservative‑free drops used 4–6 times daily for dry eye–related reflex tearing.
- Allergen avoidance – Keep windows closed during high pollen counts, use HEPA filters.
- Protective eyewear – Goggles in windy or chlorinated environments.
2. Pharmacologic Therapy
- Antihistamine or mast‑cell stabilizer eye drops (e.g., olopatadine, ketotifen) for allergic conjunctivitis.
- Topical antibiotics (e.g., erythromycin ointment, fluoroquinolone drops) for bacterial conjunctivitis.
- Topical steroids (short‑course) for severe inflammation under close supervision.
- Cyclosporine 0.05% (Restasis) or lifitegrast (Xiidra) for chronic dry eye associated with reflex tearing.
- Oral doxycycline – Helpful for meibomian gland dysfunction and blepharitis.
3. Procedural & Surgical Options
- Punctal plugs – Silicone or collagen plugs inserted into the puncta to retain tears in dry‑eye patients.
- Nasolacrimal duct probing or intubation – First‑line for congenital or acquired duct obstruction.
- Dacryocystorhinostomy (DCR) – Creation of a new drainage pathway for chronic blockages.
- Eyelid surgery – Correction of ectropion, entropion, or lagophthalmos to restore proper tear flow.
4. Follow‑up Care
Most conditions improve within 2–4 weeks of appropriate therapy. Persistent symptoms should trigger a repeat eye exam to reassess the diagnosis or modify treatment.
Prevention Tips
- Maintain good eyelid hygiene; clean eyelid margins daily.
- Use preservative‑free artificial tears before long periods of screen time or in dry indoor environments.
- Wear protective eyewear when exposed to wind, dust, or chemicals.
- Limit contact lens wear to the recommended schedule and replace lenses as instructed.
- Keep indoor humidity between 40–60 % to reduce tear evaporation.
- Manage allergies with regular antihistamine use or immunotherapy when indicated.
- Stay hydrated and consume omega‑3 fatty acids (e.g., fish oil) that support healthy tear production.
- Seek prompt treatment for sinus infections or upper‑respiratory illnesses that can affect the nasolacrimal system.
Emergency Warning Signs
- Sudden, severe eye pain with vision loss or double vision.
- Rapidly worsening redness accompanied by swelling of the eyelid or orbit.
- Profuse watery discharge combined with thick, colored (yellow/green) pus.
- Photophobia and pain that worsens with eye movement – possible keratitis or acute angle‑closure glaucoma.
- Signs of systemic infection: fever, chills, or facial swelling.
- Any trauma to the eye (penetrating injury, chemical splash).
If any of these red flags occur, seek emergency medical care or go to the nearest urgent‑care center immediately.
References:
- Mayo Clinic. “Dry eye.” Updated 2023. https://www.mayoclinic.org
- American Academy of Ophthalmology. “Conjunctivitis (Pink Eye).” 2022. https://www.aao.org
- Centers for Disease Control and Prevention. “Eye Safety & First Aid.” 2023. https://www.cdc.gov
- National Eye Institute (NEI). “Nasolacrimal Duct Obstruction.” 2022. https://www.nei.nih.gov
- Cleveland Clinic. “Blepharitis.” 2023. https://my.clevelandclinic.org
- World Health Organization. “Allergic conjunctivitis.” 2021. https://www.who.int