A portable, contact animal fundus imaging system based on Rol's GRIN lenses

Victor Hernandez, Thomas A Albini, William Lee, Cornelis Rowaan, Derek Nankivil, Esdras Arrieta Quintero, Jean-Marie A Parel

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Objective To demonstrate a cost-effective, portable, and simple-to-use fundus imaging system for laboratory animals. Animals Studied Albino rats, pigmented mice, albino guinea pigs, and New Zealand white rabbits. Procedure A contact fundus imaging system was designed and constructed using standard optical and mechanical components: a digital camera, an otoscope, a fiber optic light source, and standard optical lenses and mounts. Digital fundus video and photography of two albino rats, two pigmented mice, two New Zealand white rabbits, and two albino guinea pigs were obtained. For all animals examined, pupils were dilated and local anesthetic was administered. Results Digital images of the fundus were obtained in all animals. Contrast of retinal vasculature and overall image quality varied from one species to another, as the axial length, ocular optics, and retinal reflectance varied significantly across species. Light intensity and focus were optimized via the light source and lens focusing mount to produce high-quality images for each animal. Conclusions The portable, cost-effective contact fundus imaging system was easy to use for fundus examination of laboratory animals.

Original languageEnglish
Pages (from-to)141-144
Number of pages4
JournalVeterinary Ophthalmology
Volume15
Issue number3
DOIs
StatePublished - May 1 2012

Fingerprint

Lens
albino
Lenses
image analysis
New Zealand White rabbit
Laboratory Animals
Light
guinea pigs
laboratory animals
Otoscopes
animals
Guinea Pigs
Rabbits
Costs and Cost Analysis
Optical Devices
fiber optics
local anesthetics
photography
Photography
rats

Keywords

  • Endoscope
  • Funduscopy
  • Gradient-index
  • Otoscope

ASJC Scopus subject areas

  • veterinary(all)

Cite this

A portable, contact animal fundus imaging system based on Rol's GRIN lenses. / Hernandez, Victor; Albini, Thomas A; Lee, William; Rowaan, Cornelis; Nankivil, Derek; Arrieta Quintero, Esdras; Parel, Jean-Marie A.

In: Veterinary Ophthalmology, Vol. 15, No. 3, 01.05.2012, p. 141-144.

Research output: Contribution to journalArticle

Hernandez, Victor ; Albini, Thomas A ; Lee, William ; Rowaan, Cornelis ; Nankivil, Derek ; Arrieta Quintero, Esdras ; Parel, Jean-Marie A. / A portable, contact animal fundus imaging system based on Rol's GRIN lenses. In: Veterinary Ophthalmology. 2012 ; Vol. 15, No. 3. pp. 141-144.
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