January 1978
Volume 17, Issue 1
Articles  |   January 1978
The transscleral VER: normal responses.
Investigative Ophthalmology & Visual Science January 1978, Vol.17, 74-77. doi:
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      W W Dawson, M L Rubin, C Lyle; The transscleral VER: normal responses.. Invest. Ophthalmol. Vis. Sci. 1978;17(1):74-77.

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      © ARVO (1962-2015); The Authors (2016-present)

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Normative data taken on a sample of 10 eyes indicate that transscleral visual evoked response (TVER) stimulation of the cortical evoked response with a range of lights and at lower adaptation levels produces replicable, low-variance responses which may be of sufficient quality for the clinical evaluation of retinal and visual pathway condition. Response amplitudes were related to the radiant peak-power of white stimuli but were greater for red stimuli. Attenuation of the subjective brightness of the stimulus delivered through the inferior lid and sclera was about 0.4 log units compared to corneal delivery. Typical signal:noise ratios were 5:1.


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