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. 2016 Nov 24;17:560. doi: 10.1186/s13063-016-1676-7

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© The Author(s). 2016

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. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — a Computer-generated image showing the operator station (left) and SRT machine separated by a lead-lined glass window. b Image showing the suction-coupled contact lens and position of radiotherapy beams passing through inferior sclera to converge on the macula (images courtesy of Oraya)