Ophthalmologists found a slow-moving parasite in the eye of a 35-year-old man from rural India.

The man visited the ophthalmology clinic after redness and blurry vision in his left eye had persisted for 8 months, reported Samendra Karkhur, MS, and Ayush Gupta, MD, both of All India Institute of Medical Sciences Bhopal, in an "Images in Clinical Medicine" report published in the New England Journal of Medicine .

Physical examination of the man's eye revealed conjunctival injection as well as a fixed, dilated pupil, the authors noted. Visual acuity in the affected eye was 20/80, and slit-lamp examination showed panuveitis.

"On funduscopy, a worm was seen moving sluggishly in the posterior segment," they wrote, and the man was diagnosed with ocular gnathostomiasis.

"Gnathostomiasis is

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