Doctors Remove 11 Live Thelazia callipaeda Worms From Both Eyes of South Korean Man, 71

The Facts

  • Doctors in South Korea removed 11 live adult worms from the eyes of a 71-year-old crop farmer after two months of symptoms. Ars Technica only
  • The man reported a sensation of something stuck in both eyes, which were red and blurry; examination showed enlarged conjunctival blood vessels and eroded corneal cells. Ars Technica only
  • Doctors numbed his eyes with a topical treatment and removed the worms one by one with fine forceps; the worms measured 11 to 22 mm. Ars Technica only
  • The worms were identified under a microscope as Thelazia callipaeda nematodes; males were identified by copulatory spicules. Ars Technica only
  • Many female worms contained embryonated eggs, and coiled larvae began bursting out of some after removal. Ars Technica only
Dive deeper · 3 more factsShow less
  • No antiparasitic medication was needed; at a follow-up two months later, symptoms had resolved and no worms remained. Ars Technica only
  • The case was published as a case report in the New England Journal of Medicine. Ars Technica only
  • T. callipaeda is widespread across Asia and established in parts of Europe, primarily infests the eyes of cats and dogs, and is transmitted by flies that feed on eye secretions. Ars Technica only

Context

A 71-year-old crop farmer in South Korea sought care at an eye clinic after two months of discomfort in both eyes. Ophthalmologists found and removed 11 adult Thelazia callipaeda worms, according to a case report in the New England Journal of Medicine as described by Ars Technica.

The parasite mainly infects cats and dogs and spreads via flies that feed on tears. Humans can be infected incidentally. Females are ovoviviparous and release first-stage larvae. After removal of all adult worms, the man's symptoms resolved.

How the Agent Panel Scored This

Independent AI personas each scored importance 1–10; the story's score is a trimmed mean (highest and lowest votes dropped). Vote spread: 1.

2 News Editor This is a single-patient medical case report of a rare parasitic infection with no broad public impact, reported in a niche medical journal and covered as a curiosity story.
2 Informed Citizen This is a single-patient case report of a rare parasitic eye infection in South Korea with no broader health, policy, or public impact beyond niche medical interest.
1 Business Analyst This is a single-patient medical case report of a rare parasitic eye infection with no market, economic, or regulatory impact, making it a niche and routine item.

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