thank you, i hope our dog has this parasite and not some more deadly one. we have given a worm to the french vet and are waiting for his response. our poodle has had runny eye for a while, some weeks and we have been putting antibiotic drops in for three days, and then we found a worm in the eye this afternoon. it was a lively little thing. we have been in england france and three days in spain in the pyrenees, so feel it is not the more deadly form of worm mentioned that exists in the tropics.
please let us know what is happening with your dog. i pray for the best out- come. god bless you and yours--kb234
Great research job! Thanks for the new brain wrinkles! :-D
Thelazia californiensis-- i copied this off the internet, so there is such a thing!--be careful some types of worms can be passed on to humans!--please take your dog to the vet--a better one--kbe234--good luck and god bless
The eyeworm, Thelazia californiensis, can infest cats, dogs, sheep, deer, and other mammals and cause a disease known as thelaziasis. This is not a common disease, but it does show that parasitic worms can wind up just about anywhere. Eyeworms live in the tear ducts, between the eye and the lids (conjunctival sac and under the third eyelid). They generally do not cause serious disease, but can be annoying, as you can imagine. Humans, in rare circumstances, can become infested. Eyeworms are most common on the Pacific Coast.
How do eyeworms reproduce and how are they spread?
The adult female worm lays her eggs in the tears. There they develop into larvae that are ingested by certain flies, such as the facefly. The larvae develop in the fly for about 30 days and then move to the mouth of the fly. When the fly feeds near the eye, the larvae move out of the fly’s mouth and migrate to the eye of the new host. In 3-6 weeks, the larvae develop into adults and repeat the cycle.
What are the signs of an infestation with Thelazia californiensis?
Generally, animals show few signs of the infestation. Because of the irritation to the eye, animals may produce more tears, may be sensitive to light, and occasionally develop conjunctivitis (inflammation of the mucous membranes of the lids). This can become more serious if a secondary bacterial infection develops.
Surveys in England and the United States have found that 28-38% of horses are infested with eyeworms.
The adult worms may be found in the conjunctival sac or tear ducts. The adults are thin worms, approximately ½ to ¾ inches long. The eggs or larvae can be seen when the tears or secretions are examined under the microscope.
What can we do to treat this condition?
Adult worms may be removed after applying a topical anesthetic to the eye. A dose of 1 mg/lb. of ivermectin given subcutaneously has been shown to cure infestations with similar nematodes in Asia and Europe.
How can thelaziasis be prevented?
Controlling the fly population would be a helpful method to reduce spread of this particular nematode.
They are not Magots are they? I used to work at a vet and we had a dog one time that had maggots in her eyes. Otherwise I dont have a clue but would love to know what you find out.
What a rotten response from a vet. Forget about the university and try someone else who actually likes his job. I can't imagine that these parasites can't be identified and treated - but then, you need a vet who will actually LOOK at the problem, right? I so wish I had an easy answer for you, but like ginger, I've never heard of anything like this. Please come back and let us know what you find out, and the very best to you and your poor little pup.
No I have never heard of this. But I am not a vet, and there are a lot of things I haven't seen, or experienced.
However, I am disappointed in the not very pro-active responses you are getting from the University vets. For goodness sake! Can't some vet around the place do exactly the same thing YOU are doing, squeeze out a few of these worms, and take a look at them either under a magnifyer, or microscope or something?
Surely a wormer would get rid of the intestinal worms, for a start. That would be one thing.
She needs some tests on this. It may be possible that subcutaneous injections would help her, but I am just guessing here.
Do you live where there are deer? Deer sometimes develop something very like this, as a result of Bot-fly.