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. 2014 Dec 30;9:33–41. doi: 10.2147/OPTH.S73424

Figure 6.

Figure 6

Temporal stability of spherical equivalent refractive correction at postoperative time points after transepithelial photorefractive keratectomy (tPRK), laser-assisted in situ keratomileusis (LASIK), and photorefractive keratectomy (PRK).

Notes: Numbers in parenthesis are the patients that attended for follow-up at the specific time point. The circles indicate mean SE and the error bars indicate SD values.

Abbreviations: Pre, preoperative; SD, standard deviation; SE, spherical equivalent.