ISSN 2398-2985      

Entropion

6guinea pig

Synonym(s): Inversion of the eyelid margin, Rolling in of the eyelids, Eyelid in-turning


Introduction

  • Cause: turning in of the eyelid margin so that haired skin is in contact with the corneal surface.
  • Signs: blepharospasm, excess lacrimation, ocular surface pain, possible corneal abrasion and/or ulceration.
  • Diagnosis: ophthalmic examination.
  • Treatment: determine if the condition is secondary to severe corneal pain due to conjunctivitis, keratoconjunctivitis sicca or trichiasis. Surgery, pain control, supportive care.
  • Prognosis: good.
Print off the Owner factsheets on Eye problems and Giving your guinea pig a health check to give to your clients.

Pathogenesis

Etiology

  • Turning in of the eyelid margin so that haired skin is apposed to the corneal surface.
  • May be associated with:

Predisposing factors

General

  • May be associated with:
    • Abnormally small globe.
    • Defect in the tarsal plate of the lid.

Specific

Pathophysiology

  • The haired skin rolls into the eye and apposes the cornea.
  • This hair causes pain on the corneal surface and untreated can lead to corneal damage.
  • Corneal abrasion can lead to corneal ulceration.

Timecourse

  • Usually gradual.

Epidemiology

  • Individual problem although if a breeder, may want to consider not breeding as this condition in other species may have a hereditary component.

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

Other sources of information

  • Williams D L (2012) The Guinea Pig Eye. In: Ophthalmology of Exotic Pets. Wiley-Blackwell. pp 56-72.

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