Canis ISSN: 2398-2942

Paracentesis: aqueous

Introduction

  • Analysis of aqueous may be helpful in evaluating the eye and in diagnosis.

Uses



Tests
  • Investigation of hypopyon or hyphema associated with glaucoma Glaucoma and chronic, non-responsive iridocyclitis.
  • Diagnosis of anterior segment disease.
  • Pre-operative check before surgical repair of deep corneal ulcers.
  • Bacterial and viral culture.
  • Protein electrophoresis.
  • Antibody titers.
  • Cytology.
    Direct smears usually disappointing due to low cell populations; may be improved by use of millipore filtration..

Disadvantages

  • Trauma of iris and cornea.
  • Hyphema Hyphema.
  • Angle closure glaucoma Glaucoma.
  • Possible introduction of bacteria or foreign material.
  • May result in the formation of excessive aqueous fibrin.
  • The number of tests that can be performed on an aqueous sample is limited by the small volumes obtained.

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


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