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Lacrimation Excess (Over‑Tearing)

What is Lacrimation excess?

Lacrimation excess, commonly called excessive tearing or epiphora, refers to the production of more tears than the eye can effectively drain. Tears are essential for lubricating the ocular surface, providing nutrients, and protecting against infection. When the balance between tear production and drainage is disturbed, tears spill over the lower eyelid and run down the face.

While a few drops of tears are normal after a laugh, an onion cut, or a windy day, chronic over‑tearing can be uncomfortable, socially distressing, and sometimes a sign of an underlying eye or systemic condition.

Common Causes

There are many reasons why the eyes may produce or retain too many tears. The most frequent causes can be grouped into three categories: increased production, impaired drainage, and reflex irritation.

• Dry‑eye syndrome (aqueous‑deficient or evaporative) – Paradoxically, a dry ocular surface triggers a reflex surge of tears.
• Blocked nasolacrimal duct (NLDO) – Congenital or acquired obstruction prevents tears from draining into the nose.
• Blepharitis – Inflammation of the eyelid margin alters tear film stability and can cause tearing.
• Conjunctivitis (viral, bacterial or allergic) – Irritation of the conjunctiva stimulates tear production.
• Contact lens intolerance or poor fit – Mechanical irritation leads to reflex tearing.
• Eyelid malposition (ectropion, entropion, lagophthalmos) – Improper eyelid closure or positioning disrupts tear spread and drainage.
• Eye foreign body or corneal abrasion – Direct irritation causes a protective overflow of tears.
• Nasolacrimal duct tumors or cysts – Rare but can block drainage.
• Neurological disorders (e.g., facial nerve palsy, trigeminal neuralgia) – Altered reflex pathways may increase tearing.
• Systemic medications – Certain drugs such as isotretinoin, antihistamines, or psychotropics can affect tear production.

Associated Symptoms

Excessive tearing rarely occurs in isolation. Patients often report one or more of the following:

• Feeling of eye “burning” or gritty sensation
• Redness of the conjunctiva (pink eye)
• Swollen or crusted eyelid margins
• Blurred vision that improves after blinking
• Eye discharge that may be watery, mucoid, or purulent
• Itching, especially with allergic conjunctivitis
• Sensation of a foreign body in the eye
• Facial swelling around the inner corner of the eye (punctual swelling)
• Difficulty wearing contact lenses

When to See a Doctor

Most cases of mild epiphora can be managed at home, but you should schedule an eye‑care appointment if you notice any of the following:

• Persistent tearing for more than two weeks without an obvious trigger.
• Yellow, green, or foul‑smelling discharge (possible infection).
• Significant eye pain, redness, or swelling.
• Sudden vision loss or double vision.
• History of recent eye surgery or trauma.
• Recurrent episodes that interfere with daily activities or work.
• Any systemic symptoms such as fever, headache, or facial numbness.

Early evaluation helps prevent complications such as chronic conjunctivitis, corneal damage, or permanent nasolacrimal duct obstruction.

Diagnosis

Eye‑care professionals (optometrists or ophthalmologists) follow a systematic approach:

1. Medical history – Questions about onset, duration, triggers, medication list, allergies, and prior eye conditions.
2. Visual acuity test – Determines if tearing is affecting vision.
3. External eye examination – Inspection of eyelids, lashes, puncta (tear openings), and surrounding skin.
4. Slit‑lamp biomicroscopy – High‑magnification view of the cornea, conjunctiva, and tear film.
5. Dye tests – Fluorescein or lissamine green dyes highlight corneal abrasions, dry patches, or blockage sites.
6. Nasolacrimal duct patency tests –
   • Fluorescein dye disappearance test – Dye is placed in the lower conjunctival sac; normal drainage clears it within 5 minutes.
   • Dacryocystography or CT dacryocystography – Imaging used for suspected structural blockage.
7. Allergy testing – If allergic conjunctivitis is suspected.
8. Microbiologic cultures – Swab of discharge when infection is likely.

These assessments allow the clinician to differentiate between over‑production (e.g., dry eye) and obstruction (e.g., nasolacrimal duct blockage).

Treatment Options

Treatment is tailored to the underlying cause and may combine medical therapy, lifestyle adjustments, and procedural interventions.

Medical & Home‑Based Therapies

• Lubricating eye drops (artificial tears) – For dry‑eye‑related reflex tearing. Preservative‑free formulations are preferred for frequent use.
• Warm compresses & lid hygiene – Effective for blepharitis and meibomian gland dysfunction. Apply a warm cloth for 5‑10 minutes, then gently scrub the lid margin with diluted baby shampoo or commercial lid wipes.
• Antihistamine or mast‑cell stabilizer eye drops – Relieve allergic conjunctivitis‑induced tearing.
• Topical antibiotics or steroid drops – Reserved for bacterial conjunctivitis or severe inflammation; prescribed by a clinician.
• Oral doxycycline or tetracycline – Used for chronic meibomian gland dysfunction and some forms of blepharitis.
• Nasolacrimal duct massage (Crigler maneuver) – Gentle pressure over the lacrimal sac can help open a partially blocked duct.
• Environmental modifications – Use humidifiers, avoid smoke and wind, and wear protective goggles when outdoors.

Procedural Interventions

• Punctal plugs – Small silicone or collagen devices inserted into the tear‑draining puncta to reduce outflow, helpful when over‑production is the main issue.
• Dacryocystorhinostomy (DCR) – Surgical creation of a new drainage pathway between the lacrimal sac and nasal cavity; the gold‑standard for persistent nasolacrimal duct obstruction.
• Endoscopic or laser DCR – Minimally invasive alternatives to traditional external DCR.
• Nasolacrimal duct probing & intubation – Often performed in children with congenital blockage; a thin tube maintains patency while healing occurs.
• Eyelid surgery – Correction of ectropion, entropion, or ptosis to restore proper eyelid position and tear film distribution.
• Refractive surgery evaluation – In rare cases, over‑corrected LASIK or PRK can affect corneal surface and tear dynamics; revision may be considered.

Prevention Tips

While some causes (e.g., congenital blockage) cannot be avoided, many lifestyle measures reduce the risk of developing or worsening epiphora:

• Practice good eyelid hygiene – Clean lids daily, especially if you have blepharitis or rosacea.
• Use preservative‑free artificial tears before long screen time or in dry environments.
• Avoid rubbing your eyes; this can irritate the surface and stimulate tearing.
• Protect eyes from wind, dust, and chemicals with sunglasses or safety goggles.
• Stay hydrated and maintain a balanced diet rich in omega‑3 fatty acids (found in fish, flaxseed) to support a healthy tear film.
• Limit exposure to known allergens; keep windows closed on high‑pollen days and use HEPA air filters.
• If you wear contact lenses, follow the replacement schedule and replace the case monthly.
• Schedule regular eye exams, especially if you have a history of dry eye, allergies, or eyelid problems.

Emergency Warning Signs

References

• Mayo Clinic. “Epiphora (Excessive Tearing).” https://www.mayoclinic.org. Accessed June 2026.
• Cleveland Clinic. “Dry Eye Syndrome.” https://my.clevelandclinic.org. Accessed June 2026.
• American Academy of Ophthalmology. “Nasolacrimal Duct Obstruction.” https://www.aao.org. 2023.
• National Institute of Allergy and Infectious Diseases (NIAID). “Allergic Conjunctivitis.” https://www.niaid.nih.gov. Updated 2022.
• World Health Organization. “Eye Health Fact Sheet.” https://www.who.int. 2021.

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