Volume 98, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



We report a case of thelaziasis in a 26-year-old female, acquired in Oregon. A total of 14 worms were removed from the patient’s left eye and were morphologically identified as being . Until now, only two species of have been implicated in causing human disease, in Asia and Europe and occasional reports of from the United States of America. Here, we describe a third, previously unreported parasite of humans, (the cattle eyeworm) as an agent of human thelaziasis and the first reported case of human thelaziasis in North America in over two decades.


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  • Received : 08 Nov 2017
  • Accepted : 27 Dec 2017

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