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Abstract #24040 Published in IGR 11-3
A simple integrated system for electrophysiologic recordings in animals
Johnson MA; Slater BJ; Miller NR; Bernstein SL; Flower RWDocumenta Ophthalmologica 2009; 119: 9-12
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.
Dr. M.A. Johnson, The Department of Ophthalmology and Visual Sciences, The University of Maryland School of Medicine, Baltimore, MD, 21201, USA. mjohnson@umaryland.edu
Classification:
6.7 Electro-ophthalmodiagnosis (Part of: 6 Clinical examination methods)
