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Erschienen in: Documenta Ophthalmologica 1/2015

01.08.2015 | Erratum

Erratum to: ISCEV Standard for full-field clinical electroretinography (2015 update)

verfasst von: Daphne L. McCulloch, Michael F. Marmor, Mitchell G. Brigell, Ruth Hamilton, Graham E. Holder, Radouil Tzekov, Michael Bach

Erschienen in: Documenta Ophthalmologica | Ausgabe 1/2015

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Excerpt

There is an error in Table 1 of the recently published ISCEV Standard for full-field clinical electroretinography (2015 update) [1]. Users of this standard should note that the filter settings for dark-adapted oscillatory potentials (OPs), as correctly specified in the text, require that the high-pass filter should remove frequencies of 75 Hz and below from the ERG waveform; the low-pass filter setting of 300 Hz or above is the same as for other ERG tests. Table 1 is provided below with the correct bandpass for OPs.
Table 1
Stimulus and recording parameters for ISCEV standard full-field ERGs
ERG test
Adaptation/background strength and time
Stimulus strength (range)
Inter-stimulus time (rate)
Recording bandpass (Hz)
Main physiological generator(s)
Photopic cd s m−2
Scotopic cd s m−2
Dark-adapted 0.01 ERG
DA ≥ 20 min
0.01 (0.008–0.013)
0.025 (0.02–0.03)
≥2.0 s (≤0.5 Hz)
≤0.3
≥300
b-wave: rod-initiated on pathways
Dark-adapteda 3.0 ERG
DA ≥ 20 min
3.0 (2.7–3.4)
7.5 (6.7–8.4)
≥10 s (≤0.1 Hz)
≤0.3
≥300
a-wave: photoreceptors and post-receptoral on pathways
b-wave: on and off bipolar cells
Dark-adapteda 10 ERG
DA ≥ 20 min
10 (8.9–11.2)
25 (6.7–8.4)
≥20 s (≤0.05 Hz)
≤0.3
≥300
a-wave: photoreceptors and post-receptoral on pathways
b-wave: predominantly rod bipolar cells (on pathways)
Dark-adapteda OPs
DA ≥ 20 min
3.0 (2.7–3.4)
7.5 (6.7–8.4)
≥10 s (≤0.1 Hz)
75b
≥300
On and off pathways reflecting middle retinal layers and vascular function
Light-adapted 3.0 ERG
30 cd m−2 ≥ 10 min
3.0 (2.7–3.4)
7.5 (6.7–8.4)
≥0.5 s (≤2.0 Hz)
≤0.3
≥300
a-wave: cones with post-receptoral on and off pathways
b-wave: on and off bipolar cells
Light-adapted 30 Hz flicker
30 cd m−2 ≥ 10 min
3.0 (2.7–3.4)
7.5 (6.7–8.4)
0.036–0.030 s (28–33 Hz)
≤0.3
≥300
Cone systems with post-receptoral on and off pathways
a‘Dark-adapted’ ERGs are recorded ERGs without further dark adaptation. Thus only the weak flash ERG is a fully dark-adapted response
bFilters should remove frequencies below 75 Hz. Filtering somewhat higher frequencies is acceptable but Standard OPs must include frequencies between 100 and 300 Hz
Literatur
1.
Zurück zum Zitat McCulloch DL, Marmor MF, Brigell MG, Hamilton R, Holder GE, Tzekov R, Bach M (2015) ISCEV Standard for full-field clinical electroretinography (2015 update). Doc Ophthalmol 130:1–12 McCulloch DL, Marmor MF, Brigell MG, Hamilton R, Holder GE, Tzekov R, Bach M (2015) ISCEV Standard for full-field clinical electroretinography (2015 update). Doc Ophthalmol 130:1–12
Metadaten
Titel
Erratum to: ISCEV Standard for full-field clinical electroretinography (2015 update)
verfasst von
Daphne L. McCulloch
Michael F. Marmor
Mitchell G. Brigell
Ruth Hamilton
Graham E. Holder
Radouil Tzekov
Michael Bach
Publikationsdatum
01.08.2015
Verlag
Springer Berlin Heidelberg
Erschienen in
Documenta Ophthalmologica / Ausgabe 1/2015
Print ISSN: 0012-4486
Elektronische ISSN: 1573-2622
DOI
https://doi.org/10.1007/s10633-015-9504-z

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