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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. 4 — Comparison of the quartiles with the smallest and the largest TO opening (n = 23 for each group). A) Validation of the difference between the groups: The TO opening was significantly different (p < 0.0001). B) The smallest and largest TO opening group showed an almost equal mean and range of percent IOP reduction (p = 0.64). C) A large TO opening was associated with a significantly deeper AC (p = 0.041)