[Corneal response to 'off' in the intact rabbit eye].
The corneal electrical responses of the retina to light OFF are described in this report. The results reveal that high intensities of stimulation evoke an OFF response containing a positive wave. Since this wave was resistant to Sodium aspartate it is concluded that it arises from the receptor level. Negative wave are of double origin a) a negative potential evoked with low light intensities which is resistant to Sodium aspartate b) a second negative wave which is sensitive to the latter drug and thus arises from the internal layers of the retina. It is concluded that, because of the absence of a prominent b wave, the OFF responses permit a more sensitive evaluation of retinal electrophysiology.
D000818:Animals; D001224:Aspartic Acid / Q000494:pharmacology; D003315:Cornea / Q000502:physiology*; D004596:Electroretinography / Q000379:methods; D005071:Evoked Potentials / Q000379:methods; D010424:Pentobarbital / Q000494:pharmacology; D010775:Photic Stimulation / Q000379:methods; D011817:Rabbits; D012160:Retina / Q000502:physiology*; D012964:Sodium / Q000494:pharmacology
D001224:Aspartic Acid; D012964:Sodium; D010424:Pentobarbital
Etude de la reponse 'off' corneenne dans l'oeil intact du lapin