Clinical Study
Corneal Clarity and Visual Outcomes after Small-Incision Lenticule Extraction and Comparison to Femtosecond Laser-Assisted In Situ Keratomileusis
Table 1
SMILE versus FS-LASIK—demographics, preoperative, and surgery data.
| | Groups | SMILE | FS-LASIK | |
| | Patients | 33 | 33 | — | | Total eyes (right/left) | 30/28 | 28/30 | — | | Gender (M/F) | 15/18 | 13/20 | — | | Mean age (y) | 38 ± 10 (23 to 56) | 37 ± 10 (23 to 52) | 0.086 | | Mean SE (D) | −5.76 ± 1.80 (−9.5 to −2.0) | −5.03 ± 2.32 (−9.88 to −0.5) | 0.108 | | Mean cylinder (D) | −0.99 ± 0.90 (−4.25 to 0) | −0.95 ± 0.94 (−5.0 to 0) | 0.982 | | White to white (mm) | 12.2 ± 0.3 (11.4 to 12.9) | 12.2 ± 0.3 (11.8 to 12.8) | 0.340 | | Surgery data | | Mean SE of the correction (D) | −5.51 ± 1.86 (−9.50 to −1.75) | −4.80 ± 2.4 (−10.0 to −0.8) | 0.136 | | Mean cylinder of the correction (D) | −0.86 ± 0.94 (−4.0 to 0) | −0.90 ± 0.90 (−4.5 to 0) | 0.773 | | Mean flap/cap thickness (μm) | 119 ± 2 (110 to 120) | 113 ± 6 (100 to 120) | <0.001 | | Mean flap/cap diameter (mm) | 7.81 ± 0.07 (7.7 to 8.0) | 8.35 ± 0.10 (8.0 to 8.5) | <0.001 | | Mean lenticule thickness/ablation depth (μm) | 116 ± 28 (48 to 172) | 99 ± 38 (22 to 165) | 0.017 | | Mean lenticule/ablation diameter (mm) | 6.72 ± 0.19 (6.3 to 7.0) | 6.26 ± 0.21 (6 to 6.50) | <0.001 |
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SE: spherical equivalent; D: diopters.
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