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. 2013 Jul 22;7:1477–1486. doi: 10.2147/OPTH.S47909

Table 2.

Comparison of the outcome between the two groups

ICL group (n = 20) Cachet group (n = 18) P-value
Preoperative
Spherical equivalent D −12.9 ± 2.38 −14.94 ± 3.096 0.03
(mean ± SD) (−20 D to −9 D) (−22 D to −11 D)
Cylinder D −1.15 ± 0.71 −1.75 ± 1.16 0.068
(mean ± SD) (−3 D to −0.5 D) (−4 D to 0 D)
Total HOA RMS μ 0.327 ± 0.08 0.394 ± 0.16 0.13
(mean ± SD) (0.17 to 0.4) (0.05 to 0.56)
Coma aberration 0.194 ± 0.06 0.186 ± 0.137 0.82
RMS μ (mean ± SD) (0.11 to 0.31) (0.05 to 0.56)
Spherical aberration 0.052 ± 0.039 0.037 ± 0.084 0.5
RMS μ (mean ± SD) (0 to 0.1) (−0.1 to 0.28)
Postoperative
Spherical equivalent D −1.015 ± 1.01 −1.86 ± 1.87 0.099
(mean ± SD) (−5 D to 0 D)§ (−7 D to −0.25 D)¥
Cylinder D −0.7625 ± 0.39 −1.75 ± 1.16 0.0025
(mean ± SD) (−1.25 D to 0 D)* (−4 D to 0 D)¥
Total HOA RMS μ 0.3125 ± 0.068 0.393 ± 0.15 0.053
(mean ± SD) (0.2 to 0.36) (0.12 to 0.65)
Coma aberration 0.205 ± 0.059 0.192 ± 0.14 0.72
RMS μ (mean ± SD) (0.15 to 0.3) (0.05 to 0.56)
Spherical aberration −0.0925 ± 0.056 −0.054 ± 0.091 0.13
RMS μ (mean ± SD) (−0.15 to −0.02) (−0.25 to 0.13)
Effective blur μ 1.015 ± 1.27 2.17 ± 1.53 0.017
(mean ± SD) (0.5 to 6.3) (0.96 to 6.77)

Notes:P < 0.05 is considered statistically significant;

§

one bioptics procedure;

*

three toric ICLs implanted;

¥

five bioptics procedures.

Abbreviations: D, diopter; HOA, higher order aberrations; ICL, implantable contact lens; RMS, root mean square; SD, standard deviation.