Treatment for watering eyes isn't always necessary. Treatment depends on how severe the problem is and what's causing it.
Measures you can try yourself
If the underlying cause is dry eye syndrome, try to avoid reading, watching TV and using a computer – you're likely to blink less during these activities, which can make symptoms worse.
Lubricating eye drops can help ease the discomfort of dry eyes. These can be bought over the counter from a pharmacy, and your healthcare professional can advise which product is best for you.
It might help to hold a clean warm, damp cloth over the affected eye for five minutes – at the same time, gently massage your eyelids with the cloth to loosen any material that might be blocking the eye glands.
If a bacterial infection such as conjunctivitis is causing watering eyes, your GP may prescribe a course of antibiotics.
If they suspect a virus is the cause, you may be advised to wait for a week or so to see if it resolves itself.
If your eyes are watering because of an allergy, antihistamine medication may be prescribed to help reduce the inflammation.
In cases where irritation is caused by an inward-growing eyelash or a foreign object, such as a piece of grit, these can be removed by your GP or eye specialist.
If your lower eyelid rolls inwards (entropion) or sags outwards (ectropion), a minor operation carried out under local anaesthetic may be recommended.
The most common procedure involves tightening the tendon that holds the outer eyelid in place to give it extra support. Find out more about treatment for ectropion.
Surgery for blocked tear ducts
Tear ducts allow excess tears to drain away. If a blocked tear duct is causing watering eyes, it can be treated with surgery.
If you have an infection in your tear sac (where excess tears from your eyes drain into), it'll need to be treated with antibiotics first before surgery. Left untreated, the infection could spread to your eye socket.
Dacryocystorhinostomy (DCR) is a common surgical procedure used to treat blocked tear ducts.
It involves creating a new channel from the tear sac to the inside of your nose. This channel allows tears to bypass the blocked part of your tear duct.
Surgery generally involves removing a very small piece of bone from the side of your nose, allowing the tear sac to drain directly into the nasal cavity.
This can be done externally, starting with a small cut in the skin on the side of your nose, or from inside the nose using an endoscope. An endoscope is a narrow, flexible tube with a light at the end.
A very thin silicone tube is often inserted to keep the channel open. Within a few months, the tube will be removed and the channel should stay open without it.
The DCR procedure is carried out either under general anaesthetic or under local anaesthetic with some sedation, and takes up to an hour to perform.
If the tear duct isn't blocked, just narrowed, a thin tube with a small balloon at the end (a balloon catheter) can sometimes be used to widen it.
Most DCR surgery is carried out as a day case procedure, which means you can go home the same day.
You'll be given instructions to follow when you're discharged, such as not blowing your nose for a week after surgery.
You may also be given some eye drops or ointment to use to prevent infection and inflammation, as well as a nasal spray.
There could be some bruising and swelling around your nose and eye, which should improve over a few days or weeks. You may also experience nosebleeds for a few days.
If the drainage channels on the inside of your eye (canaliculi) are completely blocked by tears, an operation to drain them may be required.
This usually involves inserting a small glass tube to drain the tears.
Treating watering eyes in babies
Watering eyes often improve in babies without the need for treatment.
Massaging the tear ducts may help dislodge tears that have collected in the upper part of your baby's tear duct, as well as encouraging the tear duct to develop.
This can be done by applying light pressure with your first (index) finger and massaging from the corner of your baby's eye towards their nose.
Repeat the massage several times a day for a couple of months. Wash your hands before massaging.
You can also soak a cloth with warm water and hold it against your baby's eye. This may encourage the tears to drain.
If your baby has an eye infection (conjunctivitis), this may need to be treated with antibiotic eye drops.
In 9 out of 10 cases, the tear duct opens by itself before your baby is one year old.
But if your child is over a year old or has repeated infections caused by the blocked tear duct, a procedure may be recommended to open their tear duct using a probe.
This will be carried out under general anaesthetic. Only a very small number of babies with watering eyes require this type of treatment.
Very occasionally, a DCR operation is required.