Watering Eyes

watering eyes

Watering eyes (tears rolling on to your cheeks) can occur at any age, but are most common in young babies and in people over the age of seventy. An operation can usually cure a blocked tear duct. It can occur in one or both eyes.A blocked tear duct is the most common cause, but there are a number of other causes. You may not need treatment if symptoms are mild.

Small glands called as lacrimal glands, which are placed on upper outer half of the eyes, produce tears. When you blink, the eyelid spreads the tears over the front of the eye to keep it moist. Tears then drain down small channels (canaliculi) on the inner side of the eye into a tear sac and drain through a duct (nasolacrimal duct)into the nose.

The main causes of watering includes:

  • Making too many tears
  • Emotion can make you cry.
  • Anything that irritates the eye can cause you to make a lot of tears. The watering is a protective reflex to help clear irritants away from the eye.
  • Infection of the front of the eye (infective conjunctivitis).
  • An allergy causing inflammation of the front of the eye (allergic conjunctivitis).
  • A small injury or scratch to the front of the eye, or a piece of dirt or grit, which gets stuck in the eye.
  • Eyelashes that grow inwards can irritate the front of the eye. This is called an entropion.
  • Abnormalities of the tear film. For example, the lipid (fat) content of tears may not be right. The tear film may then not spread evenly across the front of the eye. Patches of dryness may then develop which can become sore and make your eyes water.
  • Thyroid eye disease is an uncommon cause.
  • Faulty drainage of tears. Tears may become blocked at any point in the drainage channels. It may be due to a gradual narrowing of the upper end of the tear duct; perhaps caused by persistent mild inflammation or sometimes the tear duct is too narrow to drain all the tears.Less commonly, there may be a blockage within the canaliculi, in the inner corner of the eye. This may be due to inflammation or scarring.Rarely, a polyp in the nose may block the tears from coming out of the tear duct.Some babies are born with a tear duct, which has not fully opened. This is common and usually clears within a few weeks without any treatment as the tear duct opens fully.

By examining, the doctor caneasily identify the cause. For example: infections, ectropion, entropion, conjunctivitis. If no obvious cause is revealed, further tests may be advised.
If a drainage problem is suspected, an eye specialist may examine the tear drainage channels, under local anaesthetic. They may push a thin probe (stick) into the canaliculi towards the tear sac to see if it is blocked. If the probe goes as far as the tear sac then fluid can be syringed into the tear duct to see if it comes out in the nose. Syringing may sometimes clear a blockage, but it may only give temporary relief. If there seems to be a blockage then a dye may be injected into the tear duct. An X-ray picture is then taken. You can see the dye in the duct on the X-ray film. It will show exactly where there is any obstruction or narrowing of the tear duct.

For treating eye irritation, often the cause can be treated.For example:

  • Eyelashes irritating the front of the eye (entropion) can be removed.
  • Conjunctivitis can usually be treated with drops.
  • Pieces of grit, etc, can be removed.
  • Treating tear drainage problems
  • Ectropion can usually be treated with a minor operation to the lower eyelid.
  • Babies with watery eyes usually grow out of it with no treatment.
  • Blockage of the channels in adults.

No treatment  is required if the watering is mild or does not bother much.A blocked tear duct can be treated with an operation called as dacrocystorhinostomy (DCR) where a new channel is made from the tear sac to the inside of the nose. Tears then bypass any blockage further down the tear duct. Another less commonly used operation is to blow up a tiny balloon inside the tear duct to make it wider, or insert a device that holds the walls of the duct open (a stent). A narrowed canaliculi which is not fully blocked may be widened by pushing in a probe. However, if it is completely blocked, an operation is an option to drain the tears into the nose

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