Canis ISSN: 2398-2942

Third eyelid flap

Synonym(s): Nictitating membrane flap

Contributor(s): Paul Gerding

Introduction

  • Nictitating membrane can be used as flap to protect and support weakened cornea and to assist corneal healing:
    • Decreases trauma to cornea from normal lid movement.
    • Decreases evaporation of tears.

Uses

  • Aids healing of corneal ulcers Ulcerative keratitis.
  • Temporary exposure keratitis, ie exophthalmos.
  • After corneal repairs (rarely needed).

Advantages

  • Simple to perform.
  • Gives good protection to cornea.
  • Topical medication can still be administered and desired therapeutic drug concentrations readily achieved.

Disadvantages

  • Cornea cannot be examined while flap is in place.
  • Cannot be used with infected corneal ulceration.

Requirements

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Preparation

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Procedure

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Aftercare

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Helper I C & Blogg R (1983) A modified third eyelid flap procedure (dog, cat). JAAHA 19 (6), 955-956 VetMedResource.


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