ISSN 2398-2977      

Eye: examination - indirect ophthalmoscopy

pequis

Introduction

Uses

Advantages

  • Greater field of view - surveys at low power.
  • Good image when ocular media is cloudy.
  • Stereopsis and depth perception if binocular instrument is used.
  • Easy to use if monocular indirect model (American Optical Co.) is used.

Disadvantages

  • Less magnification than direct technique.
  • Binocular and commercial monocular instruments are expensive, and require practice in using them and can be cumbersome.
  • Inverted image (except American Optical Co. model).
  • Require mydriasis to be effective.

Requirements

This article is available in full to registered subscribers

Sign up now to obtain ten tokens to view any ten Vetlexicon articles, images, sounds or videos, or Login

Preparation

This article is available in full to registered subscribers

Sign up now to obtain ten tokens to view any ten Vetlexicon articles, images, sounds or videos, or Login

Procedure

This article is available in full to registered subscribers

Sign up now to obtain ten tokens to view any ten Vetlexicon articles, images, sounds or videos, or Login

Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Cooley P L (1992) Normal equine ocular anatomy and eye examination. Vet Clin North Am Equine Pract (3), 427-449 PubMed.

Other sources of information

  • Brooks D E (1999) Equine Ophthalmology. In: Veterinary Ophthalmology. Ed: Gelatt K N. 3rd edn. pp 1053-1116.

Can’t find what you’re looking for?

We have an ever growing content library on Vetlexicon so if you ever find we haven't covered something that you need please fill in the form below and let us know!

 
 
 
 

To show you are not a Bot please can you enter the number showing adjacent to this field

 Security code