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  • Title: Retina viability in the Necturus.
    Author: Culbert JP, Dawson WW.
    Journal: Invest Ophthalmol Vis Sci; 1977 Feb; 16(2):184-8. PubMed ID: 832981.
    Abstract:
    Electroretinograms (ERG's) were recorded from the eyes of paralyzed normal and decapitated mudpuppies (Necturus maculosus). Fully dark-adapted responses to a range of stimulus intensities were compiled hourly under both conditions. Statistical analyses indicate no significant change in responsiveness in paralyzed normal animals during periods up to 6 hours. After decapitation, there was a significant decline of sensitivity to light during the first 3 hours. An oxygen-sensitive component similar to the c-wave was observed with DC recording but only in normal eyes. Anoxic mudpuppy eyes show an ERG decline with an average time constant of 1.5 hours.
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