... difficult. Mice and rats provide genetically controlled models for investigations. Pigs, dogs and cats represent good large-size animal models, while rabbits are one of the most used species for retinal toxicity evaluations. Various laboratory methods were identified, including light microscopy, electron...

...D.I. Hamasaki; Gail S. Tucker; Gregory W. Maguire The neurotoxin 5,7-dihydroxytryptamine (5,7-DHT) was used to destroy the indoleamine-acccumulating amacrine cells located in the cat’s retina. With 100 μg of 5,7-DHT, the alterations in the electroretinogram (ERG) were present in all of the treated...

... in this combination in cats. However, the use of xylaxine should be carefully considered, especially in eye surgery, until further controlled information is available. 27 06 1988 27 03 1990 10 12 2009 © 1990 S. Karger AG, Basel 1990 Copyright / Drug Dosage / Disclaimer Copyright: All rights...

...P. van Hasselt In order to elucidate the involvement of visual cortical areas in the centrifugal influences upon the retina, the effect of bilateral ablation of these brain areas upon the double-flash electroretinogram (ERG) was investigated in unanaesthetized, paralysed cats. The intervals between...

...P. van Hasselt The effect of ablation of visual cortical areas on the electroretinographic critical flicker fusion frequency (CFF) was studied in unanaesthetized, paralysed cats. Bilateral ablation of the visual area of the suprasylvian sulcus severely depressed the photopic part of the CFF curve...

... of radioactive zinc into the anterior chamber and offers some promise for further experimental studies of this trace metal within the eye. 69m Zn Ocular zinc Uveoretinal uptake Cat Sclera Iris Cornea Choroid Retina Lens Skin Liver 3 01 1972 16 02 1972 9 12 2009 © 1972 S...

...F.J. Macri In cats anesthetized with pentobarbital Na, a highly significant correlation was found between the rate of aqueous humor production and eye arterial perfusion pressure (blood pressure minus intraocular pressure). The filtration coefficient for water was 0.312 μl min ––1 mm Hg ––1...

...M. Wienrich; E. Zrenner Cone mechanisms and colour opponency were investigated in 108 recordings from tonic ganglion cells of the rhesus monkey retina and 265 recordings from ganglion cells of the cat retina. Colour-opponent cells with input from short and longer wavelength sensitive cones can...

...Harvey Babkoff Two-pulse b-wave recovery in the cat was measured by the ratio of the amplitude of the b-wave evoked by the second member of a pair of pulses to the b-wave evoked by the first. This ratio, R 2 /R 1 , when plotted as a function of dark time was fitted by an exponential equation...

... sensory nerves, and that the degenerated non-myelinated nerves of the iris are sympathetic in origin. 9 10 1974 12 11 1974 3 12 2009 Cat Electron microscopy Iris Nerves Wallerian degeneration © 1975 S. Karger AG, Basel 1975 Copyright / Drug Dosage / Disclaimer Copyright...

...G.P.M. Horsten; J.A.J. Klijn; J.E. Winkelman In the relation between the amplitude of the ERG (a + b potential) to dark adaptation after standard blinding, it was possible to induce significant changes by bipolar electrical stimulation (240 cps, 3 mA) of the lateral geniculated body in 10 cats...

...P. van Hasselt In the visual area of the suprasylvian sulcus (V ss ) of the cat, a dual relationship does exist between light flash intensity and amplitude of the initial complex of the evoked potentials. 20 cats were investigated. Light flash intensity was varied over a range of 8 log unit...

...Mikio Sasoh; Ning Ma; Yukitaka Uji Aim: The present study investigates whether glutamate immunoreactivity (IR) in the cat outer retina, which is devoid of blood vessels, can be well preserved by perfusion fixation. Methods: Adult cats were perfused intracardially for 1, 5, 10, 15 and 30 min...

...Tadahiro Murakami; Hiromi Fujita; Tsutomu Fujihara; Masatsugu Nakamura; Katsuhiko Nakata We describe a novel, high-resolution and noninvasive method for measuring tear volume changes in cats. The method entails photographing at the lid margin the tear meniscus area defined by instillation of 0.1...

...Bing Li Purpose: To determine the effect of placing a pneumatic suction ring on intraocular pressure (IOP) in the cat and to design an improved method to generate a stable elevation of IOP. Methods: A pneumatic suction ring was applied to the eye in cats while the IOP was monitored. Three groups...

... with fluorescence viewing of the retinal capillary network in live cats. This technique was developed to enable visualization of the erythrocyte flow in the retinal capillary network and used to acquire video recording of the retinal capillary erythrocyte flow in normal feline eyes. The pattern of capillary...

...Kazuhiro Shimazu; Yozo Miyake; Yasuhiro Fukatsu; Satoru Watanabe We investigated how the neuronal activity of the cells in area 17 of cats evoked by transcorneal electrical stimuli is associated with the transcorneal electrically evoked response (EER). Neuronal firings were associated...