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Thelazia is a genus of nematode worms which parasitize the eyes and associated tissues of various bird and mammal hosts, including humans.[2] They are often called "eyeworms," and infestation with Thelazia species is referred to as "thelaziasis" (occasionally spelled "thelaziosis"). Adults are usually found in the eyelids, tear glands, tear ducts, or the so-called "third eyelid" (nictitating membrane). Occasionally, they are found in the eyeball itself, either under the conjunctiva (the membrane that covers the white part of the eye) or in the vitreous cavity of the eyeball.[3] All species of Thelazia for which the life cycle has been studied are transmitted by species of Diptera (flies) which do not bite, but which feed on tears.
India, Canada, Australia, United Kingdom, United States
Fly, Moses Harris, Animal, Arthropod, Insect, Muscidae
Carnivora, Pet, Puppy, Olfactory system, Chocolate
World War II, Nazism, British Fascists, Fascism, Italian fascism
Moraxella bovis, Bacteria, Vector (epidemiology), Asymptomatic carrier
Spiruria, Thelazioidea, Eumetazoa, Bilateria, Secernentea, Spirurida