Light-emitting diodes and half-cell electrodes in experimental recording of electroretinogram c-wave.
A method of electroretinogram c-wave recording in the rat was developed that uses a contact lens electrode connected through a saline bridge with a silver-silver chloride half-cell. A cluster of light-emitting diodes, regulated by an electronic light-emitting diode stimulator, was used as a light source. The method enables recordings of c-waves of 0.4-1.6 mV amplitude as well as other electroretinogram components in narrow limits of variation. The two main sources of response variability are voltage shunting and eyeball protrusion.
Hawlina
M
M
Vision Research Unit of Sherrington School (UMDS), Rayne Institute, St Thomas' Hospital, London, England.
De Villiers
P L
PL
D000818:Animals; D003261:Contact Lenses; D004566:Electrodes; D004596:Electroretinography / Q000379:methods*; D008027:Light; D010775:Photic Stimulation; D010857:Pigment Epithelium of Eye / Q000502:physiology*; D051381:Rats