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. 2013 Jul 18;27(4):249–255. doi: 10.3341/kjo.2013.27.4.249

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© 2013 The Korean Ophthalmological Society

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 3 — The preoperative and postoperative modulation transfer function (MTF) cutoff values. The green arrow heads indicate statistical significance (p < 0.05) vs. the preoperative result. The asterisk indicates a statistically significant difference between the laser in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK) groups. POD = postoperative day.