<unk>  is a parasitic nematode, and the most common cause of<unk> sis (or eyeworm infestation) in humans, dogs and cats. It was first discovered in the eyes of a dog in China in 1910. By 2000, over 250 human cases had been reported in the medical literature.
Thelazia callipaeda
Piedraia hortae
Haycocknema perplexum
Craniopagus parasiticus
Cedecea davisae
Phlegmasia alba dolens
Antihecticum poterii
Gongylonema pulchrum