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. 2017 May 20;255(8):1643–1650. doi: 10.1007/s00417-017-3683-0

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© The Author(s) 2017

Open Access This 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. 6 — Quartile comparison (1st versus 4th TO opening quartile) for the trabeculotomy-only subgroup (n = 14 for each quartile). A) The TO opening was highly significantly different between both groups (p < 0.0001). B) Similar to the whole study population, the IOP reduction was not significantly different between the quartile groups (p = 0.28). C) The largest TO opening (4th) quartile showed a significantly deeper AC than the smallest TO opening (1st) quartile (p = 0.02)