Abstract
In congenital total color blindness direct current recordings of the electroretinogram displayed a negativity following the b-wave, not present in recordings of normal eyes. This negativity, preceding the onset of the c-wave, is probably caused by the lack of cone contribution to the positive c-wave component.
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Thaler, A., Lessel, M.R. & Heilig, P. The c-wave in achromats. Doc Ophthalmol 69, 203–207 (1988). https://doi.org/10.1007/BF00153702
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DOI: https://doi.org/10.1007/BF00153702