Thelazia lacrymalis in the eyelids of British horses.
D000818:Animals; D005141:Eyelid Diseases / Q000469:parasitology / Q000662:veterinary*; D006734:Horse Diseases / Q000469:parasitology*; D006736:Horses; D009349:Nematode Infections / Q000469:parasitology / Q000662:veterinary*; D013802:Thelazioidea; D006113:United Kingdom