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A Rare Hideout for Caterpillar Hairs.

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Ophthalmia nodosa, an eye inflammation caused by caterpillar hairs (setae), can severely affect ocular tissues. A rare case highlights caterpillar setae found in the meibomian gland orifice, a previously unreported presentation.

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Area of Science:

  • Ophthalmology
  • Toxicology

Background:

  • Ophthalmia nodosa results from ocular tissue inflammation due to foreign bodies, primarily caterpillar setae.
  • Caterpillar setae possess microscopic barbs that facilitate ocular tissue penetration and migration.

Observation:

  • Setae are commonly found embedded in the conjunctiva and cornea.
  • Rarely, setae can penetrate the cornea, entering the anterior chamber, lens, and posterior segment.

Findings:

  • This report details a unique presentation of ophthalmia nodosa with caterpillar hair observed within the meibomian gland orifice.
  • This specific location within the meibomian gland has not been previously documented in medical literature.

Implications:

  • Understanding the varied presentations of ophthalmia nodosa is crucial for accurate diagnosis and effective treatment.
  • This case expands the known spectrum of ocular involvement by caterpillar setae, emphasizing the need for vigilance in diagnosing unusual presentations.