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Ectopic cilium in seven horses.

Simon Hurn1, Andrew Turner, Christina Mc Cowan

  • 1Melbourne Veterinary Referral Center, Veterinary Clinical Center, Victoria, Australia. sdhurn@bigpond.com

Veterinary Ophthalmology
|May 25, 2005
PubMed
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Ectopic cilia, an abnormal hair growth in horses, cause eye irritation and discharge. Surgical removal is effective, though recurrence is possible, highlighting the importance of this diagnosis in equine ophthalmology.

Area of Science:

  • Veterinary Ophthalmology
  • Equine Health

Background:

  • Ectopic cilia are a rare condition in horses, characterized by abnormal hair growth from the eyelid.
  • This condition can lead to significant ocular discomfort and secondary complications.

Observation:

  • Seven adult horses presented with blepharospasm, ocular discharge, and keratitis.
  • Ophthalmic examination revealed a single, translucent cilium originating from the palpebral conjunctiva of the upper eyelid, approximately 5 mm from the eyelid margin.
  • No corneal ulceration was observed in any of the affected horses.

Findings:

  • Transconjunctival surgical excision was performed in all seven horses.
  • Most horses showed a positive response to the surgical treatment.
  • One horse experienced a recurrence of the ectopic cilium six weeks after surgery.

Related Experiment Videos

  • Histopathologic examination confirmed the diagnosis in one of the two cases examined.

    • Implications:

    • This study is the first to report ectopic cilia in horses.
    • Ectopic cilia should be considered an important etiological factor for epiphora, blepharospasm, and keratitis in equine patients.
    • Transconjunctival excision is a viable treatment option, but monitoring for recurrence is recommended.