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 10 mm long."
Thelaziasis
Necatoriasis
Paragonimiasis
Isosporiasis
Metagonimiasis
Helminthiasis
Scarabiasis
Naegleriasis