Bovis ISSN 2398-2993

Eyelid surgery: third eyelid flap

Synonym(s): Nictitating membrane, nictitans

Contributor(s): Ash Phipps , John Tulloch

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Introduction

  • To provide physical support for the entire cornea by completely covering the eye by suturing the third eyelid across the cornea.
  • This procedure aids in the repair of the damaged cornea.

Uses

  • Protection of entire cornea to facilitate healing of; corneal injury, keratitis, traumatic ulcerative wound healing. 

Advantages

  • Less eyelid distortion than a temporary tarsorrhaphy.
    • Note: Temporary tarsorrhaphy is the surgical procedure of suturing the upper and lower eyelids together to completely close the eye. The basic approach is to place approximately three to five horizontal mattress sutures to suture the eyelids together. To prevent the sutures from pulling through the skin, stents may be used. 
    • This diagram indicates the placement of horizontal mattress sutures to perfume a temporary tarsorrhaphy .
    • This diagram indicates the final position of the horizontal mattress sutures for the temporary tarsorrhaphy .

Disadvantages

  • Unable to visualize and monitor cornea and globe. This does not allow for accurate monitoring of the eye, and the wound healing process.

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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Prognosis

  • Depends upon primary ocular problem.

Further Reading

Publications

Refereed Papers

Other sources of information

  • Munroe G, Miller P & Gerding P (2017) Third eyelid: Flap. Vetlexicon Equis. [online] Available at: www.vetstream.com.
  • Parkinson T J, Vermunt J J & Malmo J (2010) Diseases of cattle in Australasia: a comprehensive textbook. New Zealand Veterinary Association Foundation for Continuing Education, Wellington, NZ.
  • Divers T J & Peek S (2007) Rebhun's diseases of dairy cattle. Elsevier Health Sciences. St Louis, Missouri, USA.
  • Fubini S L & Ducharme N (2004) Farm animal surgery. Elsevier Health Sciences, St Louis, Missouri, USA.


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