Thelaziasis

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Annotated Information

Classification and Resources

ID 89
ICD-10
ICD-9-CM
OMIM
SNOMED-CT
Orphanet
MeSH
DO

Defination

Thelaziasis (occasionally spelled thelaziosis) is the term for infestation with parasitic nematodes of the genus Thelazia The adults of all Thelazia species discovered so far inhabit the eyes and associated tissues (such as eyelids, tear ducts, etc) of various mammal and bird hosts, including humans Thelazia nematodes are often referred to as eyeworms~

Synonyms

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Etiology

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Diagnosis

In animal and human hosts, infestation by Thelazia may be asymptomatic, though it frequently causes watery eyes (epiphora), conjunctivitis, corneal opacity, or corneal ulcers (ulcerative keratitis) Infested humans have also reported "foreign body sensation"?– the feeling that something is in the eye~Diagnosis involves simply examining the eyes and nearby tissues for the worms Adult Thelazia are very active, one author described T californiensis as a "short lively piece of nylon fishing line about mm long"~

Symptoms

In animal and human hosts, infestation by Thelazia may be asymptomatic, though it frequently causes watery eyes (epiphora), conjunctivitis, corneal opacity, or corneal ulcers (ulcerative keratitis) Infested humans have also reported "foreign body sensation"?– the feeling that something is in the eye~Diagnosis involves simply examining the eyes and nearby tissues for the worms Adult Thelazia are very active, one author described T californiensis as a "short lively piece of nylon fishing line about mm long"~

Treatment

In animal and human hosts, infestation by Thelazia may be asymptomatic, though it frequently causes watery eyes (epiphora), conjunctivitis, corneal opacity, or corneal ulcers (ulcerative keratitis) Infested humans have also reported "foreign body sensation"?– the feeling that something is in the eye~Diagnosis involves simply examining the eyes and nearby tissues for the worms Adult Thelazia are very active, one author described T californiensis as a "short lively piece of nylon fishing line about mm long"~

Labs working on this disease

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References

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