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01-08-2015 | Erratum

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

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

Published in: Documenta Ophthalmologica | Issue 1/2015

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)
ERG test	Adaptation/background strength and time	Photopic cd s m⁻²	Scotopic cd s m⁻²	Inter-stimulus time (rate)	Recording bandpass (Hz)		Main physiological generator(s)
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-adapted^a 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-adapted^a 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-adapted^a OPs	DA ≥ 20 min	3.0 (2.7–3.4)	7.5 (6.7–8.4)	≥10 s (≤0.1 Hz)	75^b	≥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

…

ACC 2024 Congress

Springer Medicine

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

Excerpt

ACC 2024 Congress

Springer Medicine

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