Epiphora is an abnormal overflow of tears from the eyes. It is usually caused by:
- obstruction of tear drainage system.
- overproduction of tears, often due to irritation or inflammation of the eye.
How are tears drained from the eyeS?
- Two small openings called punctae are present at the inner corners of each eye.
- Tears flow down these drainage holes into the lacrimal sac.
- From this sac, a small tube called the nasolacrimal duct carries the tears into the nose.
- The tears then drain to the outside through the nose.
If the tear ducts are blocked (like a blocked plumbing system), tears in the eye back up and overflow down the face, usually from the inner corner of the eye.
HOW DO I KNOW IF MY DOG’S TEAR DUCTS ARE BLOCKED?
A thorough examination shows that Megan’s eyes are looking good. The excessive tears could be due to a temporary irritation. For senior dogs like Megan, it is advisable to see the vet twice a year for a general health check.
what can be done for a blocked tear duct?
If your dog does have a blocked tear duct, the vet can perform a nasolacrimal flush. Eye drops may be prescribed. If the problem persists, a nasolacrimal catheter (small plastic tube) can be passed through the tear duct into the nose under general anaesthesia.