Table 2. Clinical outcomes of femtosecond laser assisted penetrating keratoplasty (FLAK).
| Number ofeyes | Femtosecondlaser | Incision | Age | Follow-up(months) | BSCVA | Cornealastigmatism (D) | Refractiveastigmatism (D) | Endothelial cell density(cells/mm2) | |
| Hoffart et al4 | 9 | 40-kHz Femtec | straight cut | 68.9±16.5 | 6±3 | 0.54±0.22 logMAR | 4.6±2.3 | 2.9±1.2 | 1194±465 |
| Buratto et al5 | 7 | 15-kHz Intralase | top hat cut | 46.9±13.8 | 3 | 20/60 to 20/20 | NA | 2.9±1.1 | NA |
| Farid et al7 | 13 | Intralase | zigzag cut | 63.2±15.9 | 3 to 9 | CF to 20/100 | 2.2±1.1 | NA | NA |
| Price et al8 | 6 | 15-kHz Intralase | top hat cut | 76.7±14.0 | 12 | CF to 20/50 | NA | 5.4±2.5 | 2030±600 |
| Por et al9 | 8 | 10-kHz Femtec | straight cut | 60.3 | 9.5 | CF to 20/20 | NA | 2.56 | NA |
| Cheng et al11 | 5 | Intralase | top hat cut | 42 to 75 | 12 | 20/32 | 3.26±2.1 | 3.20±2.0 | 1793±491 |
| Bahar et al12 | 16 | 60-kHz Intralase | top hat cut | 42.2±18.7 | 9.9±3.7 | 0.32±0.31 logMAR | NA | 3.6±1.9 | 1981±474 |
| Farid et al13 | 49 | 60-kHz Intralase | zigzag cut | 59.82 | 1 to 12 | 0.2 logMAR | 2.9±1.0 | NA | NA |
| Chamberlain et al16 | 50 | 60-kHz Intralase | zigzag cut | 46.26 | 11.85 | 0.265 logMAR | 6.06 | NA | NA |
| Gaster et al17 | 54 | 60-kHz Intralase | zigzag cut | 38.7 | 6 | 0.44±0.49 logMAR | 4.76±3.71 | NA | NA |
| Birnbaum et al18 | 32 | 60-kHz Intralase | mushroom cut | 39±11 | 14.1±5.1 | 0.26±0.41 logMAR | 6.2±3.6 | 5.3±3.8 | 19.0% loss/year |
| 91 | 60-kHz Intralase | top hat cut | 57±11 | 10.7±5.1 | 0.34±0.28 logMAR | 6.0±4.0 | 5.1±2.5 | 16.5% loss/year | |
| Current | 20 | 500-kHz VisuMax | straight cut | 63.7±23.2 | 6 | 0.22±0.53 logMAR | 4.06±2.24 | 1.08±1.11 | 1775±422 |
BSCVA = best-spectacle corrected visual acuity, D = diopter, logMAR = logarithm of the minimum angle of resolution, NA = not applicable, CF = count fingers.