Results 171 to 180 of about 17,429 (222)
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Agents and Actions, 1988
Basic mechanisms of the rat ERG were reinvestigated with contemporary methods of recording and photic stimulation via an optic fiber system connected with a contact lens. Flash stimulation and background illuminance were performed with photometrically defined light stimuli.
U, Schaeppi +4 more
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Basic mechanisms of the rat ERG were reinvestigated with contemporary methods of recording and photic stimulation via an optic fiber system connected with a contact lens. Flash stimulation and background illuminance were performed with photometrically defined light stimuli.
U, Schaeppi +4 more
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2018
The electroretinogram (ERG) is a mass electrical response from the retina, evoked by a brief flash of light. ERG recording is done using an active electrode (a contact lens in contact with bulbar conjunctiva) and a reference electrode (at the outer canthus); the active electrode can also be a gold foil electrode or HK-loop electrode.
Stephen H, Tsang, Tarun, Sharma
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The electroretinogram (ERG) is a mass electrical response from the retina, evoked by a brief flash of light. ERG recording is done using an active electrode (a contact lens in contact with bulbar conjunctiva) and a reference electrode (at the outer canthus); the active electrode can also be a gold foil electrode or HK-loop electrode.
Stephen H, Tsang, Tarun, Sharma
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Acta Ophthalmologica, 2008
Abstract Purpose To illustrate the value of electroretinography in clinical practice. Methods A case presentation format will be used to illustrate how pattern electroretinography, full‐field flash electroretinography and multifocal electroretinography can be used in clinical practice.
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Abstract Purpose To illustrate the value of electroretinography in clinical practice. Methods A case presentation format will be used to illustrate how pattern electroretinography, full‐field flash electroretinography and multifocal electroretinography can be used in clinical practice.
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A Ganzfeld Stimulator For Electroretinography
Archives of Ophthalmology, 1976The design of a ganzfeld stimulator for electroretinography affects both clinical results and ease of operation. Several advantageous design differences from a recently described ganzfeld stimulator are (1) close proximity of the flash electrode to the surface of the sphere to increase the intensity and uniformity of the stimulus; (2) provision for ...
R D, Gunkel, D R, Bergsma, P, Gouras
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Electrode Equipment for Electroretinography
Biomedical Engineering, 2011Electrode equipment and its use in electroretinography (ERG) are discussed. Relative ERG error for corneal electrodes was 54%. Commercially available ERG electrodes can be used in medicine. The results obtained in this work provide a basis for normative documents for corneal electrodes in clinics.
I N, Spiridonov +2 more
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Computer-Aided Electroretinography
Ophthalmologica, 2010A description is given of a system of computer-aided electroretinogram (ERG) analysis. The system is the basis of a new quality in ERG evaluation. The statistical behavior of ERG components in healthy eye subjects is demonstrated by histograms. The new opportunities offered by the method are discussed.
W, Müller, U, Spittel, H, Göbel
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An international standard for electroretinography
Documenta Ophthalmologica, 1989An international standard procedure for electroretinography (ERG) has finally been established. It represents a minimum protocol to record five basic signals (rod response, scotopic maximal response, oscillatory potentials, single-flash cone response, 30-Hz flicker response).
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CLINICAL FLICKER ELECTRORETINOGRAPHY
Optometry and Vision Science, 1968ABSTRACT The history of the ERG (Electroretinogram) is traced through its first recordings to present times. The origins of the ERG are discussed, leading to the potential application of this technique to clinical optometry.
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Indications for Clinical Electroretinography
Archives of Ophthalmology, 1958An electric potential is produced in the retina of the eye, which makes the front of the retina and the cornea electrically positive and the back of the retina and the bulb negative. When the retina is stimulated by light this potential increases, and an electric action potential, the electroretinogram, or ERG, develops.
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