An Oregon woman who had worms coming out of her eye is being called the first known human case of a parasitic infection spread by flies.
Fourteen tiny worms were removed from the left eye of the 26-year-old woman over a 20-day period in August 2016 before her symptoms dissipated. The worms were translucent and each less than half an inch long. Scientists reported the case on Monday.
The woman was diagnosed with Thelazia gulosa, a type of eye worm seen in the northern United States and southern Canada – but only in cattle. It is spread by flies that feed on eyeball lubrication.