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. 2015 Mar 20;15:28. doi: 10.1186/s12886-015-0005-3

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© Yao et al.; licensee BioMed Central. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. 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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Tear film breakup time (TBUT) at baseline and at days 7 and 30 after surgery. (A) All patients undergoing cataract surgery. (B) Subgroup of patients with dry eye before cataract surgery. (C) Subgroup of patients without dry eye before cataract surgery. *P ≤ 0.0475; **P ≤ 0.0168 compared with control group; error bars represent standard error mean.