Last year, I wrote about a 35-year-old man with worms swimming around in his eyeball. It sounds like the kind of thing that shouldn’t happen often, yet we are back here today with a similar case report published in the New England Journal of Medicine , via Ars Technica . This time, our patient is a 71-year-old South Korean farmer who had mating worms in his eyes that had to be removed before they could give birth to larvae, which would’ve made matters significantly worse.

The farmer spent agonizing months bent over, feeling like something was stuck in his eyes. When ophthalmologists finally took a look, they found 11 roundworms on his conjunctiva that were eroding his corneal cells.…