A simple integrated system for electrophysiologic recordings in animals

Mary A. Johnson, Bernard J. Slater, Neil R. Miller, Steven L. Bernstein, Robert W. Flower

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


This technical note describes a modification to a fundus camera that permits simultaneous recording of pattern electroretinograms (pERGs) and pattern visual evoked potentials (pVEPs). The modification consists of placing an organic light-emitting diode (OLED) in the split-viewer pathway of a fundus camera, in a plane conjugate to the subject's pupil. In this way, a focused image of the OLED can be delivered to a precisely known location on the retina. The advantage of using an OLED is that it can achieve high luminance while maintaining high contrast, and with minimal degradation over time. This system is particularly useful for animal studies, especially when precise retinal positioning is required.

Original languageEnglish (US)
Pages (from-to)9-12
Number of pages4
JournalDocumenta Ophthalmologica
Issue number1
StatePublished - 2009


  • Fundus camera
  • Organic light-emitting diode
  • Pattern electroretinogram
  • Pattern visual evoked potential

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems
  • Physiology (medical)


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