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. 2021 May 27;9(6):E836–E842. doi: 10.1055/a-1386-3879

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The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.

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Fig. 1 — Eye strain scores reported by physicians (numbered 1–8) before ambient light (first bar columns, shown in blue) and after ambient light (second bar column, shown in green). Physicians 1 and 8 reported no symptoms after ambient light. Data is shown for all physicians with complete eye strain survey data (one physician in the study had incomplete eye strain data). The average eye strain scores are indicated by the final columns, with an average eye strain score of 8.12 after low light and 5.63 after ambient light.