Beitr�ge zu den Teilstr�men des menschlichen Elektroretinogramms

Wirth, A

doi:10.1007/bf01075901

Cited by 15 publications

(3 citation statements)

References 11 publications

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“…Probably because of technical difficulties, or for other reasons, very little has been published on the human c-wave. Dodt (1951), working with Ag -Ag C1 electrodes, and Wirth (1951), using a.c. amplification, were able to demonstrate human c-waves, which tended to disappear after repeated light flashes. With the aid of general anaesthesia human c-wave recordings were obtained by Hanitzsch, Hommer & Bornschein (1966) and Heilig, Thaler & Bornschein (1973).…”

Section: Suen Erik G Nilsson and Mas-olau Skoogmentioning

confidence: 99%

COVARIATION OF THE SIMULTANEOUSLY RECORDED c‐WAVE AND STANDING POTENTIAL OF THE HUMAN EYE

Nilsson

Skoog

1975

Acta Ophthalmologica

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The c-wave and the directly recorded standing potential (SP) of the human eye were studied with the aid of a recently developed method including matched temperature stabilized calomel electrodes, d.c. amplifiers and a suction contact lens. This technique, which does not require general anaesthesia, permits simultaneous direct d.c. recordings of the SP and the c-wave in human volunteers during long-term experiments. Upon repetitive light flashes (stimulus duration 1 sec, interval 20 sec and flash intensity 4.5 rel. log units above b-wave threshold) both variables responded with slow amplitude oscillations with a frequency of about 2/hour. The oscillations were similar as to phases and frequencies. Both the potentials are held to be generated mainly in the pigment epithelium. Considering this partly common origin the observed covariation was an interesting finding.

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Section: Suen Erik G Nilsson and Mas-olau Skoogmentioning

confidence: 99%

COVARIATION OF THE SIMULTANEOUSLY RECORDED c‐WAVE AND STANDING POTENTIAL OF THE HUMAN EYE

Nilsson

Skoog

1975

Acta Ophthalmologica

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“…These authors did not state whether mydriatic drugs were used to eliminate iris potentials, which may simulate c-waves. Wirth (1951) and Dodt (1951) also recorded the human c-wave, the latter with a d.c. technique. When making several recordings during an experiment they noted that, as a result of light adaptation, the c-wave was present only in the first recording.…”

mentioning

confidence: 99%

THE c‐WAVE OF THE HUMAN D.C. REGISTERED ERG. II. CYCLIC VARIATIONS OF THE c‐WAVE AMPLITUDE

Skoog

Nilsson

1974

Acta Ophthalmologica

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The c-wave of the human ERG was studied with a new d.c. technique. The c-wave amplitude showed cyclic variations with a frequency of about 2/hour when repeatedly recorded. The average amplitude difference between the peak and the trough of the first oscillation was about 150 pV.With a stimulus frequency of 2/min the changes resembled damped oscillations. After 1 hour they were quite small. With a stimulus frequency of 0.5/min the oscillations were not clearly damped within 1 hour. There was also evidence of a much slower change upon which the Zihour oscillations seemed to be superimposed. These findings will be of importance if a clinical routine procedure for registrations of the c-wave is to be developed.In a previous paper on the human d.c. registered ERG the c-wave was studied quantitatively with a new method. A linear relationship between the c-wave amplitude and the logarithm of stimulus light intensity was found within the

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“…Since 1951. when the C-wave was recorded in man [1] many authors [2][3][4][5] have been occu pied with finding the origin of this wave.…”

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confidence: 99%

C-Wave Study in Cone Dysfunction Syndrome

Moschos

Brοuzas²,

Papantonis³

et al. 1993

Ophthalmologica

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Beitr�ge zu den Teilstr�men des menschlichen Elektroretinogramms

Cited by 15 publications

References 11 publications

COVARIATION OF THE SIMULTANEOUSLY RECORDED c‐WAVE AND STANDING POTENTIAL OF THE HUMAN EYE

COVARIATION OF THE SIMULTANEOUSLY RECORDED c‐WAVE AND STANDING POTENTIAL OF THE HUMAN EYE

THE c‐WAVE OF THE HUMAN D.C. REGISTERED ERG. II. CYCLIC VARIATIONS OF THE c‐WAVE AMPLITUDE

C-Wave Study in Cone Dysfunction Syndrome

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