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Enterobious vermicularis induced infectious keratitis following penetrating keratoplasty
Sabia Handa1, Bruttendu Moharana1, Vivek Jha1
1Advanced Eye Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India.
Abstract:
A 28-year-old man with a prior history of penetrating keratoplasty in the left eye for total corneal melt presented with a 3-day history of a red, painful left eye. On examination, he was found to have graft infiltrates. Microscopic examination of wet mount preparation of corneal scrapings revealed the presence of embryonated eggs of E. vermicularis. Cellophane (scotch) tape preparation from perianal region also revealed embryonated eggs of E. vermicularis as well as live adult worms. Ocular and adnexal involvement by E. vermicularis is extremely rare. Here, we report the first case of infection of a corneal graft with E. vermicularis.
Insights
A rare case of a corneal graft infection caused by Enterobius vermicularis (pinworm) was reported in a 28-year-old man. This finding highlights the potential for unusual parasitic infections in ocular tissues.
Area of Science:
- Ophthalmology
- Parasitology
- Infectious Diseases
Background:
- Corneal melt can necessitate penetrating keratoplasty.
- Ocular infections typically involve bacteria, fungi, or viruses.
- Enterobius vermicularis (pinworm) is a common intestinal parasite in humans.
Observation:
- A patient presented with a red, painful eye and corneal graft infiltrates post-keratoplasty.
- Microscopic examination of corneal scrapings revealed E. vermicularis eggs.
- Perianal tape preparation confirmed E. vermicularis infection with eggs and adult worms.
Findings:
- This is the first reported case of a corneal graft infected with E. vermicularis.
- The presence of pinworm eggs within the corneal graft indicates direct parasitic invasion.
- Ocular and adnexal involvement by E. vermicularis is exceptionally rare.
Implications:
- This case expands the known spectrum of ocular parasitic infections.
- It underscores the importance of considering unusual pathogens in graft complications.
- Further research may be needed to understand the pathogenesis and treatment of such rare ocular helminthic infections.
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