pattern electroretinograms in response to sinusoidal gratings were recorded from 18 elder subjects (mean age 62.7 years) and 22 young subjects (mean age 27 years) by means of skin electrodes. All subjects were free from ocular pathology and their corrected visual acuity was 1.0 or better. In young s
Pattern electroretinogram: Effects of reference electrode position
β Scribed by J. Vernon Odom; Tom M. Maida; William W. Dawson; Robert Hobson
- Publisher
- Springer-Verlag
- Year
- 1987
- Tongue
- English
- Weight
- 475 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0012-4486
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β¦ Synopsis
The pattern electroretinogram has assumed greater clinical and experimental significance because of its inner retinal origins. However, clinical tests may be confounded by an artifact. We tested subjects varying reference electrode position and eye stimulated while employing the Dawson-Trick-Litzkow (DTL) fiber electrode as the active electrode. The presence of a statistically significant artifactual response could not be confirmed. However, the variability of responses elicited with the outer canthus was less and the signal-to-noise ratio greater than with other reference positions.
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