South Korean Doctors Remove 11 Live Parasitic Worms from Farmer's Eyes
Doctors in South Korea removed 11 live oriental eyeworms from a 71-year-old farmer's eyes after months of pain and blurred vision, as detailed in a recent medical journal report.
A 71-year-old farmer in South Korea experienced a rare and disturbing medical condition after doctors discovered 11 live parasitic worms crawling inside his eyes, causing months of pain and vision impairment. The unusual case was detailed in the New England Journal of Medicine.
A research team led by Professor Sung Ji-eun at Kangwon National University Hospital documented the diagnosis and treatment of the patient, who had no prior medical history. After suffering from redness and blurred vision for two months, the farmer sought medical attention.
Upon examination, physicians initially identified conjunctival hyperemia in both eyes alongside corneal epithelial erosion. However, the most alarming finding was observed deep within the eye: white roundworms actively writhing in the folds between the eyeball and the eyelids.
Extraction and Diagnosis
Following local anesthesia, the medical team carefully used fine forceps to remove 11 live worms, measuring between 11 and 20 millimeters in length, one by one. Microscopic examination confirmed the parasites belonged to the species Thelazia callipaeda, commonly known as the oriental eyeworm.
Laboratory analysis revealed further concerning details: some of the extracted female worms had already released eggs and larvae inside the patient's eyes, while active reproductive organs were observed in the males. Consequently, doctors formally diagnosed the patient with thelaziasis.
Researchers explained that Thelazia callipaeda is a zoonotic parasite primarily transmitted by fruit flies that feed on eye secretions. Infection can cause various symptoms, including a foreign body sensation, redness, excessive tearing, and intense itching.
Prevention and Recovery
Following the removal of the parasites, the farmer experienced immediate relief. A two-month follow-up examination showed no recurrence of the infection, and his vision fully recovered.
Professor Sung noted that while oriental eyeworm infection is rare, it is occasionally reported in South Korea. She emphasized the importance of prevention, advising individuals working outdoors to keep insects and flies away from their faces and urging anyone experiencing persistent irritation or vision disturbances to consult an ophthalmologist promptly.
