ISSN 2398-2977      

Eye: drug administration 02 - topical

pequis

Introduction

  • Frequent topical administration (up to 12-24 times/day) is not well tolerated by most horses and is often impractical to carry out without the use of continuous irrigation systems.
  • These systems consist of an indwelling tube lavage or delivery system and a medication reservoir with a pump or flow-controlling device allowing continuous perfusion.
  • Two basic tube delivery systems exist:
    • Subpalpebral lavage - optimal choice.
    • Nasolacrimal duct retrograde irrigation system.

Uses

  • Continuous or frequent administration of topical medication.
  • Medication with third eyelid flap Third eyelid: flap or temporary tarsorrhaphy Eyelid: tarsorrhaphy - temporary performed.
  • Animal uncooperative to treat because of temperament or ocular pain.

Advantages

  • Allow frequent or continuous, reliable administration of medication to the eye.
  • Minimal handling and restraint required once in place.
  • Less risk of damage to eye, horse or handler.

Disadvantages

  • Comparatively expensive.
  • Some skill and cost required in placement.
  • May need replacement if damaged or migrate.
  • Incorrect placement can → corneal damage and conjunctival irritation (subpalpebral).
  • May encourage administration of multiple drugs together.
  • Horse may need to be kept relatively confined to avoid damaging the system.

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.
  • Malho P (2012) Practical tips on subpalpebral lavage system placement in horses. UK Vet 17 (1), 9-11 VetMedResource.

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