ISSN 2398-2985      

Enucleation

6guinea pig

Introduction

  • Surgical procedure for removal of the globe for control of numerous conditions, such as uncontrolled uveitis, glaucoma as well as retrobulbar abscesses and hypopyon.
  • Often required because of trauma such as globe rupture and exophthalmos.
  • Occasionally required to treat ocular neoplasia.

Uses

Advantages

  • Diseased globe often very painful: can lead to inappetence and secondary gut stasis Gastrointestinal stasis.
  • As a prey species, guinea pigs hide signs of pain well. Chronic eye conditions can affect appetite and alter normal mastication leading to dental disease.
  • Relatively easy technique for surgery with a short general anesthetic.
  • In cases of retrobulbar abscesses, allows direct access for clearing of debris, pus, and better drainage.
  • Provides immediate pain relief.
  • Post-operative medication usually only required for short period of time.
  • Diseased eye often has little to no vision left and the animal has already adapted.
  • Histopathology of removed globe can provide a definitive diagnosis for underlying condition.

Disadvantages

  • Loss of sight if any present before enucleation.
  • Retrobulbar abscesses can recur despite enucleation.
  • Risk of general anesthesia.
  • Risk of wound infection.
  • Risk of wound breakdown.
  • Drastic cosmetic change: site of enucleation may leave a depression at the site.

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

  • Generally good.
  • Guarded if retrobulbar abscess or neoplasia present.

Further Reading

Publications

Refereed Papers

  • Recent references from PubMed and VetMedResource.
  • Redrobe S (2002) Soft tissue surgery of rabbits and rodents. Semin Avian Exotic Pet Med 11 (4), 231-245 SciDirect.

Other sources of information

  • Szabo Z (2020) Soft Tissue Surgery: Rodents. In: Ferrets, rabbits, and rodents. Clinical Medicine and Surgery. Eds: Carpenter J W & Quesenberry K E. Elsevier/Saunders, USA. pp 480-481.

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