What causes watery eyes?
General information about excess tearing.

Summary
Watery eyes, medically known as epiphora, can be caused by a variety of factors. Depending on the cause, different treatment options will be best for you.
Common causes of watery eyes
Allergies
Allergic reactions to pollen, dust, pet dander, or other environmental allergens can trigger watery eyes.
Dry eyes
Paradoxically, dry eyes can lead to excessive tearing as the eyes attempt to compensate for the lack of moisture.
Conjunctivitis
Also known as pink eye, this condition can cause inflammation of the conjunctiva, leading to watery eyes along with other symptoms like redness and itchiness.
Blocked tear ducts
Tear ducts can become blocked due to infection, inflammation or injury leading to poor drainage of tears and watery eyes.
Eye strain
Prolonged focusing, such as staring at a computer screen for extended periods, can strain the eyes and lead to watery eyes.
Foreign bodies
If something gets into the eye, such as dust or an eyelash, it can cause irritation and excessive tearing.
Eyelid problems
Conditions affecting the eyelids, such as ectropion (outward turning of the eyelid) or entropion (inward turning of the eyelid), can cause tears to spill over onto the cheeks.
Corneal abrasions or ulcers
Injuries or infections of the cornea can cause watery eyes along with other symptoms like pain and sensitivity to light.
Environmental factors
Wind, smoke or bright lights can irritate the eyes and cause them to water.
Certain medications
Some medications, such as certain eye drops or oral medications, can lead to watery eyes as a side effect.
What can I do to improve my watery eyes?
Identify the cause
See an eye care professional who will help you determine what might be triggering your watery eyes as treating the underlying cause is your best course of action.
Allergy management
If allergies are the cause, you can try over-the-counter antihistamine eye drops or oral antihistamines to help alleviate symptoms. Ask your pharmacist for advice and try to choose a drop that is preservative free. Additionally, minimising exposure to allergens can be helpful.
Eye drops
If your eyes are dry and this is causing them to water, using artificial tears or lubricating eye drops can help soothe the irritation and reduce tearing. Over-the-counter artificial tear drops, available at pharmacies and optometry clinics can lubricate your eyes and provide relief from dryness. Look out for a drop that is preservative free and contains mineral oils and water or ask your eye care professional which drops they would specifically recommend for you. If you have been diagnosed with dry eye, follow the regime your eyecare professional has recommended, even on days when you are not experiencing symptoms. This will ensure your eyes stay well lubricated.
Warm compress
Applying a warm compress to your eyes can help open up blocked tear glands and soothe irritated eyes. This can be particularly useful if your watery eyes are caused by blocked tear glands.
Avoid irritants
Try to avoid smoke, dust and other irritants that can exacerbate watery eyes.
Stay hydrated
Sometimes, dehydration can contribute to dry eyes which paradoxically can lead to watery eyes as the eyes overcompensate for the dryness. Make sure you’re drinking enough water throughout the day.
Protective eyewear
If you’re going to be in windy or dusty environments, wearing protective eyewear can help prevent irritation and reduce tearing.
Clean your eyelids
Sometimes, build-up of debris or oil along the eyelids can lead to irritation and watery eyes. Gently cleaning your eyelids with a mild, tear-free cleanser can help alleviate this.
If your watery eyes persist despite trying these remedies, it’s important to consult an eye care professional. They can help determine the underlying cause and recommend appropriate treatment.
For more information
Always speak to your GP and eye care professional about the best treatment options for you.
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