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. 2018 Apr 23;18:106. doi: 10.1186/s12886-018-0765-7

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© The Author(s). 2018

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 — Visual outcomes and the correlation with severity of corneal opacity after cataract surgery in eyes with visually debilitating cataracts and coexisting corneal opacities. a Comparison of pre-operative BCVA and post-operative UCVA in logMAR, histogram representing efficacy of cataract surgeries. b Comparison of pre-operative BCVA and post-operative BCVA in logMAR, histogram demonstrating safety of surgeries in our cases; only one case (4.3%) become worse in visual performance. c There was a statistically significantly negative linear relationship and strong correlation in terms of BCVA (r = − 0.782, P = 0.001); d there was a mildly significantly negative linear relationship and weak correlation regarding UCVA (r = − 0.118, P = 0.688). (BCVA = best corrected visual acuity; UCVA = uncorrected visual acuity)