Felis ISSN 2398-2950

Lendectomy

Synonym(s): Intracapsular lens extraction (ICLE)

Contributor(s): Dennis E Brooks, David Williams

Introduction

  • Lendectomy, also known as intracapsular lens extraction (ICLE) is the term used for the removal of the lens and its capsule via a large perilimbal corneal incision. The technique is used for the treatment of anterior lens subluxation (the condition immediately preceding lens luxation Eye: lens luxation, where the lens remains in situ but becomes increasingly unstable).
  • In cats, lens luxation is usually secondary to chronic anterior uveitis Anterior uvea: traumatic uveitis (or, less commonly, secondary to glaucoma Glaucoma). It may be unilateral or bilateral.

Uses

  • To remove an anteriorly luxated lens, and in some cases prophylactically to remove a subluxated lens.
    Not recommended for treatment of posterior lens luxation due to the high risk of retinal detachment Retina: detachment.

Advantages

  • Surgical removal of an anteriorly luxated lens is the only treatment available that may successfully restore vision and prevent secondary complications such as glaucoma and blindness Blindness.

Disadvantages

  • Difficult surgical technique: magnification, correct microsurgical instrumentation and microsurgical experience are essential.
    Referral to a specialist ophthalmologist is recommended.
  • Post-operative complications may be severe, including wound breakdown, corneal ulceration, bacterial infection, anterior uveitis, secondary glaucoma, retinal detachment, blindness.
  • Even in surgically successful cases, post-operative vision is reduced due to hyperopia (long-sightedness) caused by the absence of a lens.
  • In cats, the underlying cause (anterior uveitis or glaucoma) needs to be controlled following surgery.

Requirements

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Preparation

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Procedure

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Aftercare

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Curtis R (1990) Lens luxation in the dog and cat. Vet Clin North Am Small Anim Pract 20 (3), 755-73 PubMed.

Other sources of information

  • Petersen-Jones S & Crispin S (2002) BSAVA Manual of Small Animal Ophthalmology. 2nd edn. British Small Animal Veterinary Association. ISBN 0 905214 54 4


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