Abstract
Studies have been undertaken to see if the non-competitive NMDA antagonists, ketamine, MK-801 and dextromethorphan would preserve the b-wave of the electroretinogram (ERG) in vitro. The drugs had no effect on the ERG b-wave, nor prolonged its survival postmortem. The present results support previous evidence suggesting that NMDA-receptors are not involved directly in synaptic transmission between photoreceptors and ON-bipolar cells. Further, loss of the b-wave in postmortem anoxia does not appear to be mediated via NMDA-receptors.
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Huang, J., Salt, T., Voaden, M. et al. Non-competitive NMDA-receptor antagonists and anoxic degeneration of the ERG B-wave in vitro. Eye 5, 476–480 (1991). https://doi.org/10.1038/eye.1991.77
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DOI: https://doi.org/10.1038/eye.1991.77