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. 2018 Jun 1;137(1):1–8. doi: 10.1007/s10633-018-9642-1

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© The Author(s) 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 2 — Illustrative red flash ERGs (red traces) and ISCEV standard DA 0.01 ERGs (grey traces) from subject #16, recorded after 20 min dark adaptation (a). The numbers to the right of each pair of traces indicate the strength of the red flash in photopic cd s m⁻². Right panels show effect of red flash strength on subject #16’s peak times (b); x and b-wave amplitudes (c) and a-wave amplitudes (d). Circles: a-waves, diamonds: x-waves, squares: b-waves. Open symbols close to y-axes represent mean (sd) values for DA 0.01 ERGs for comparison