Previous studies on visual and refractive outcomes of small incision lenticule extraction (SMILE)
| Author | Year | Repetition rate | Eyes | Follow-up | Age | Spherical equivalent | Astigmatism | Safety | Efficacy | Predictability | Stability | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (kHz) | (months) | (years) | (D) | (D) | (logMAR CDVA) | (logMAR UDVA) | Within±0.5 D (%) | within±1.0 D (%) | (D) | |||
| Shah et al7 | 2011 | 200 | 51 | 6 | 26.0±5.55 | −4.87±2.16 | −0.76±0.98 | 70% unchanged | 79% ≤0.16 logMAR | 91 | 100 | −0.06 |
| 25% gained 1 line or more | ||||||||||||
| 6% lost 1 line or more | ||||||||||||
| Sekundo et al8 | 2011 | 200 | 91 | 6 | 35.6 | −4.75±1.56 | −0.78±0.79 | 49% unchanged | 83.5% ≤0.00 logMAR | 80.2 | 95.6 | 0.05 |
| 35.6% gained 1 line or more | ||||||||||||
| 11% lost 1 line or more | ||||||||||||
| Vestergaard et al10 | 2012 | 500 | 279 | 3 | 38.1±8.7 | −7.18±1.57 | −0.71±0.50 | −0.03±0.07 | 95% ≤0.30 logMAR | 77 | 95 | −0.18 |
| Hjortdal et al11 | 2012 | 500 | 670 | 3 | 38.3±8.3 | −7.19±1.30 | −0.60±0.46 | −0.049±0.097 | 84% ≤0.16 logMAR | 80.1 | 94.2 | −0.25±0.44 (undercorrection) |
| Kamiya et al6 | 2014 | 500 | 26 | 6 | 31.5±6.2 | −4.21±2.63 | −0.54±0.74 | −0.19±0.07 | −0.15±0.20 | 100 | 100 | 0.00±0.30 |
| Sekundo et al15 | 2014 | 500 | 53 | 12 | 29 | −4.68±1.29 | −0.41±0.51 | 47% unchanged | 88% ≤0.00 logMAR | 92 | 100 | −0.08 |
| 42% gained 1 line or more | ||||||||||||
| 11% lost 1 line | ||||||||||||
| Vestergaard et al16 | 2014 | 500 | 34 | 6 | 35±7 | −7.56±1.11 | – | −0.08±0.08 | −0.04±0.06 | 88 | 97 | −0.17±0.34 |
| Ivarsen et al17 | 2014 | 500 | 1574 | 3 | 38±8 | −7.25±1.84 | −0.93±0.90 | −0.05±0.10 | – | – | – | −0.15±0.50 |
| Lin et al18 | 2014 | – | 60 | 3 | 25.9±6.4 | −5.13±1.75 | −0.57±0.47 | 96.7% unchanged | 85% ≤0.00 logMAR | – | 98.3 | −0.09±0.38 |
| 3.3% lost 1 line or more | ||||||||||||
| Ganesh and Gupta19 | 2014 | – | 50 | 3 | 27.4±5.6 | −4.95±2.09 | −0.53±0.93 | 88% unchanged | 84% ≤0.00 logMAR | – | – | −0.14±0.28 |
| 12% gained 1 line | ||||||||||||
| Reinstein et al20 | 2014 | 500 | 110 | 12 | 32.4±5.7 | −2.61±0.54 | −0.55±0.38 | 66% unchanged | 96% ≤0.00 logMAR | 84 | 99 | −0.05±0.36 |
| 25% gained 1 line or more | ||||||||||||
| 9% lost 1 line | ||||||||||||
| Xu and Yang21 | 2015 | – | 52 | 12 | 24.5±6.0 | −5.53±1.70 | −0.64±0.51 | 67% unchanged | 83% ≤0.00 logMAR | 90.4 | 98.1 | −0.06±0.37 |
| 32% gained 1 line or more | ||||||||||||
| 1% lost 1 line | ||||||||||||
| Current | 500 | 52 | 12 | 31.8±6.9 | −4.11±1.73 | −0.51±0.65 | −0.22±0.07 | −0.16±0.11 | 100 | 100 | −0.05±0.32 | |