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Table 3 Time courses of the optical quality parameters after SMILE

From: Comparison of visual quality after EVO-ICL implantation and SMILE to select the appropriate surgical method for high myopia

  Preoperative Postoperative period
1 week 1 month 3 month
MTF cutoff frequency (cpd) 48.36 ± 5.67 44.81 ± 7.33 46.02 ± 6.06 46.34 ± 4.23
P-value   P1 = 0.011* P2 = 0.126 P3 = 0.075
SR 0.25 ± 0.05 0.23 ± 0.03 0.25 ± 0.06 0.26 ± 0.06
P-value   P1 = 0.916 P2 = 0.947 P3 = 0.953
OV 100% 1.62 ± 0.14 1.45 ± 0.33 1.48 ± 0.19 1.54 ± 0.16
P-value   P1 = 0.040* P2 = 0.048* P3 = 0.130
OV 20% 1.26 ± 0.23 1.10 ± 0.19 1.12 ± 0.03 1.13 ± 0.26
P-value   P1 = 0.002* P2 = 0.062 P3 = 0.085
OV 9% 0.71 ± 0.14 0.60 ± 0.09 0.65 ± 0.19 0.67 ± 0.13
P-value   P1 = 0.001* P2 = 0.553 P3 = 0.936
OSI 0.40 ± 0.11 0.55 ± 0.22 0.50 ± 0.18 0.42 ± 0.13
P-value   P1 = 0.000* P2 = 0.013* P3 = 0.963
  1. P1 = P-value of the difference in the visual quality parameters before surgery and one week after surgery; P2 = P-value of the difference in the visual quality parameters before surgery and one month after surgery; P3 = P-value of the difference in the visual quality parameters before surgery and three months after surgery
  2. MTF modulation transfer function, OSI objective scattering index, OV OQAS value
  3. *P < 0.05 = significant difference