Watery eye is caused by excessive 'tearing'. Tearing is a normal function of the eye and is produced from the tear gland known as the 'lacrimal gland'. The moisture/ tears comprise oils, water & antibodies which serve to protect the eye. However excessive amounts may indicate underlying problems or ailments such as an eye infections or allergic reaction. 

Causes of watery eye

Tears are produced to help keep the cornea moist and healthy and are spread across the eye by blinking. Watery eye, known medically as epiphora, is excessive watering of the eye caused by a blockage of the tear ducts or infection of the eye.

Other causes of watery eye include:

• Blepharitis – this is an inflammation of the eyelash follicles caused by bacteria found on the skin.
• Conjunctivitis – this is caused by a viral, bacterial or fungal infection of the conjunctiva (a clear membrane on the inside of the eyelid).
• Obstruction of the tear duct – the nasolacrimal duct can become blocked due to infection, polyps or weakened eyelid muscles.
• Irritation – anything that causes irritation of the eye such as allergies, grit or an ingrown eyelash can trigger watery eye.
• Lower eyelid droop – this is known as ectropion and causes the lower eyelid to droop forward preventing tears from being transported into the drainage system.
• Blocked canaliculus – a small channel in the corner of the eye (known as the canaliculi) can become blocked from inflammation or scarring.

Watery eye is generally caused by an underlying problem such as an infection which will require assessment by your GP.

If an allergy is the cause, the allergen will need to be identified and removed from your environment in order to prevent the problem recurring. Allergies such as hay fever need to be managed.

*Source: GoToSee.co.uk

Back to Top »