Excessive tearing, known as eye watering, can result from either an overproduction of tears or issues with drainage. Common triggers include environmental irritants such as wind and smoke, allergies, dry eye syndrome, or infections like conjunctivitis. Additionally, a foreign object in the eye, a blocked tear duct, or physical problems with the eyelids may also contribute to this condition.
Causes of eye watering
- Environmental irritants:
Wind, smoke, air pollution, and bright light can irritate the eyes, leading to excessive tearing.
- Allergies:
Reactions to substances like pollen, dust mites, or pet dander can result in increased tearing, often accompanied by symptoms such as itchiness and redness.
- Dry eyes:
This is a common yet ironic cause; when the surface of the eye lacks moisture, it can trigger reflex tearing as a compensatory mechanism.
- Eye infections:
Infections, whether viral or bacterial, such as conjunctivitis (commonly referred to as “pink eye”), can cause watery eyes, discharge, and redness.
- Blocked tear ducts:
An obstruction in the tear duct can hinder proper drainage of tears, leading to overflow.
- Eyelid issues:
Conditions where the eyelid turns inward (entropion) or outward (ectropion) can disrupt normal tear drainage.
- Corneal problems:
A scratch on the cornea (known as a corneal abrasion) or other surface issues can result in excessive tearing, pain, and light sensitivity.
- Other causes:
This category may include foreign objects, ingrown eyelashes, a stye, or even certain eye drops or chemotherapy medications.
When to see a doctor
It is advisable to consult a doctor if symptoms are present on only one side of the face, if they worsen, or if there is no improvement within a few weeks.
Additional signs that require medical evaluation include pain, changes in vision, redness, or the presence of a visible mass or lesion.
