a genus of nematodes in the family Thelaziidae. They are parasites of the eyes of birds and cause ophthalmitis, with ocular discharge, and scratching at the eyes.
Oxyspirura mansoni, Oxyspirura parvorum
found under the third eyelid of fowls, turkeys and peafowl.
Oxyspirura petrowi and many others
found in the eyes of wild birds.