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DANIEL FINKELSTEIN, PETER GOURAS, MARY HOFF; Human Electroretinogram near the Absolute Threshold of Vision. Invest. Ophthalmol. Vis. Sci. 1968;7(2):214-218.
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With total visual field stimulation and the aid of a computer of average transients, the ERG can be recorded with stimulus intensities approaching the absolute visual threshold. At these low intensities, the predominant feature of the ERG is a corneal negative potential.
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