Canis ISSN: 2398-2942

Contact lens: application

Synonym(s): veterinary bandage lens, soft contact lens

Contributor(s): Paul Gerding, John Hales

Introduction

  • Soft contact lenses act as a protective shield on the cornea.
  • They permit corneal repair and improve patient comfort by preventing contact between damaged cornea and eyelids.

Uses

  • Corneal ulceration: to reduce pain and to retain tear film over ulcerated area to aid healing.
  • Corneal edema: may prevent rupture of epithelial bullae and reduce discomfort caused by abrasion of ulcers.
  • Adnexal problems,eg distichiasis, entropion, ectopic cilia: to reduce corneal abrasion until surgery can be performed.
  • Traumatic injury,eg laceration or perforation.

Advantages

  • Simple to apply and remove.
  • Well tolerated.

Disadvantages

  • Poor fit in some dogs.
  • May actually retard rate of corneal epithelial wound repair in some dogs.
  • Contraindicated in presence of keratoconjunctivitis sicca Keratoconjunctivitis sicca and active infection.
    Animals with atopy Skin: atopy may be predisposed to allergic reaction.
  • Avoid use in conjunction with dyes, eg fluoroscein Fluorescein test and Rose-Bengal Rose-Bengal staining , as these will be absorbed onto lens' surface.

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.
  • Sansom J & Barnett K (1997) Soft contact lenses in small animalsWaltham Focus 7, 21-23.
  • Morgan R V, Bachrach A & Ogilvie G K (1984) An evaluation of soft contact lens usage in the dog and cat. JAAHA 20 (6), 885-888 VetMedResource.


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