ISSN 2398-2977      

Cornea: Burdock Pappus bristle keratopathy

pequis

Introduction

  • Burdock pappus (Arctiumspp) bristles   Cornea: keratopathy 01 - Burdock bristles    Cornea: keratopathy 02 - Burdock bush   are common conjunctival foreign bodies in the northeastern United States that can   →   chronic non-healing corneal ulcers   Keratitis: traumatic / ulcerative  .

Pathogenesis

Etiology

  • Bristle acts like a foreign body.
  • Bristle may also release irritating chemicals to cause inflammation.

Predisposing factors

General
  • Exposure to Burdock plants.

Pathophysiology

  • Chronic epithelial erosion or ulceration can develop from physical irritation of the bristle.
  • Corneal granulation tissue can be prominent at the ulcer site.

Timecourse

  • Variable.

Diagnosis

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Treatment

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Prevention

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Rebhun W C, Georgi M & Georgi J R (1991) Persistent corneal ulcers in horses caused by embedded Burdock Pappus bristles. Vet Med 86, 930-935 VetMedResource.

Other sources of information

  • Gilger B C (2005) Ed. Equine Ophthalmology. W B Saunders, USA. ISBN: 0721605222.
  • Brooks D E (2002) Ophthalmology for the Equine Practitioner. Teton New Media, Jackson, WY. ISBN: 1893441512.
  • Brooks D E & Matthews A G (1999) Equine Ophthalmology. In: Veterinary Ophthalmology. Ed: Gelatt K N. 4th edn. Lippincott, Williams & Wilkins. ISBN: 0683300768.

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