The Rat Electroretinogram
نویسندگان
چکیده
منابع مشابه
The Rat Electroretinogram
Characteristics of the electroretinogram (ERG) produced by the essentially all rod eye of the rat are presented as functions of the number of quanta absorbed by each rod per stimulus flash. The ERG's were obtained with 1.5 msec. stimulus flashes and uniform illumination of the entire retina. Under these conditions, distortions in the ERG due to stray light are minimized, and the ERG more accura...
متن کاملQuantum Relations of the Rat Electroretinogram
The rat retina is uniform and contains almost exclusively rods. Therefore the rat eye, when uniformly illuminated, produces a gross electroretinogram (ERG) which is simply related to the activity of the individual retinal sources of the ERG. Characteristics of ERG's are shown on an intensity scale of the average number of quanta absorbed per rod per stimulus flash obtained by direct accurate me...
متن کاملResistance of diabetic rat electroretinogram to hypoxemia.
PURPOSE To investigate the mechanisms of the known electroretinographic abnormalities of diabetic rats and to explore effects of hypoxemia. METHODS Subretinal and vitreal microelectrodes were used to isolate the retinal and retinal pigment epithelial components of the electroretinogram. Normoxic and hypoxemic recordings were taken from nine normal and six streptozotocin-diabetic, anesthetized...
متن کاملThe rat electroretinogram in combined zinc and vitamin A deficiency.
To assess the relative importance and interdependence of zinc and vitamin A in retinal function, a group of 36 male Wistar rats were raised in dim illumination and deprived of both zinc and vitamin A (Z-A-) for 90 days (Phase I) until they lost weight and showed signs of both vitamin A and zinc deficiency. Scotopic electroretinograms (ERGs) showed an average 1.5 log unit elevation in light inte...
متن کاملThe focal cone electroretinogram
The focal cone electroretinogram (ERG) in monkey retina has been examined with a 3 deg pulse of laser light (544 and 633 nm) centered on a 25 deg steady white rod saturating field. The stimuli were viewed simultaneously through a slit lamp and corneal contact lens. Cone ERGs were studied at different eccentricities from the fovea and compared with full-field corneal and intraretinal ERGs. The c...
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ژورنال
عنوان ژورنال: Journal of General Physiology
سال: 1964
ISSN: 1540-7748,0022-1295
DOI: 10.1085/jgp.47.6.1107