Thelazia

Thelazia
The eye worms, a genus of spiruroid nematodes that inhabit the lacrimal ducts and surface of the eyes of various domestic and wild animals, but rarely humans; a number of species have been reported from wild birds. Cyclic development occurs in muscoid flies; infective larvae emerge from the fly mouthparts while the fly is feeding on or near the eyes of the host. [G. thelazo, to suck]
- T. californiensis a nematode species occurring in the tear ducts, conjunctival sac, or under the nictitating membrane of dogs, coyotes, black bears, sheep, deer, jack rabbits, cats and, occasionally, humans in the western and southwestern U.S.; heavy infections cause photophobia, lacrimation, eyelid edema, conjunctivitis, and even blindness.
- T. callipaeda a species reported from humans in Southeast Asia and California; the worm, embedded in a subconjunctival tumor or swimming in the aqueous humor after penetrating the corneoscleral limbus, causes pain, photophobia, and tearing.

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The·la·zia thə-'lā-zē-ə n a genus of nematode worms that is the type of the family Thelaziidae and includes various eye worms

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The·la·zia (the-laґzhə) a genus of nematodes of the family Thelaziidae. Several species, such as T. callipaeґda and T. californienґsis, are eye worms parasitic in domestic animals.

Medical dictionary. 2011.

Look at other dictionaries:

  • thelazia — the·la·zia …   English syllables

  • thelazia — thə̇ˈlāzēə noun Usage: capitalized Etymology: New Latin, from Greek thēlazein to suckle, suck (from thēlē nipple) + New Latin ia more at feminine : a genus of nematode worms that comprises various eye worms and is the type of the family… …   Useful english dictionary

  • Thelazia callipaeda — femelle Thelazia callipaeda est un ver nématode parasite, principale cause de Thélaziasis (terme à vérifier), ou infection oculaire par un ver, chez les humains, les chiens et les chats. Il a été découvert pour la première fois dans les yeux d un …   Wikipédia en Français

  • Thelazia callipaeda — femelle …   Wikipédia en Français

  • Thelazia callipaeda — вид нематод сем. Thelaziidae, паразитирующий в глазах у хищных животных; встречается в СССР; иногда вызывает телязиоз у человека …   Большой медицинский словарь

  • Fadenwurminfektionen des Hundes — – die Ansteckung (Infektion, auch Infestation) von Hunden mit parasitisch lebenden Fadenwürmern (Nematoda) – sind neben dem Bandwurmbefall und den Infektionen mit Einzellern (Giardiose, Neosporose) häufige Parasitosen in der tierärztlichen Praxis …   Deutsch Wikipedia

  • Телязиоз — Thelaziasis МКБ 10 B83.883.8 Телязиоз (thelaziosis) гельминтоз из группы нематодозов, характеризуется поражением органов зрения …   Википедия

  • thelaziasis — Infection with nematodes of the genus Thelazia. * * * thel·a·zi·a·sis .thel ə zī ə səs n, pl a·ses .sēz infestation with or disease caused by roundworms of the genus Thelazia * * * the·la·zi·a·sis (the″lə ziґə sis) infection …   Medical dictionary

  • Helminthiase — Une helminthiase est une terme désignant les maladies parasitaires, causées par des vers parasites intestinaux, les helminthes. Ces vers constituent un important problème de santé publique dans les pays en voie de développement puisque plus deux… …   Wikipédia en Français

  • eye worm — n a parasitic worm found in the eye: as a) either of two slender nematode worms of the genus Oxyspirura (O. mansoni and O. petrowi) living beneath the nictitating membrane of the eyes of birds and esp. chickens b) any member of the nematode genus …   Medical dictionary

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