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Table 3 Changes of posterior corneal elevation and Kmb after femtosecond allogenic lenticule implantation

From: Changes in the posterior corneal surface after femtosecond laser-assisted lenticule intrastromal keratoplasty (LIKE) performed into a pocket (SMI-LIKE) or under a flap (FS-LIKE)

Parameter 

Postop 1 d

Postop 1 m

Postop 3 m

 

SMI-LIKE

FS-LIKE

P value

SMI-LIKE

FS-LIKE

P value

SMI-LIKE

FS-LIKE

P value

PCE

 − 1.73 ± 3.29

2.50 ± 3.61

0.007

 − 0.18 ± 2.75

1.50 ± 3.03

0.149

 − 0.18 ± 2.18

1.25 ± 2.60

0.098

 PCE-4 mm

 − 0.71 ± 1.38

 − 0.78 ± 2.50

0.910

 − 0.49 ± 1.48

 − 0.52 ± 1.48

0.794

 − 0.56 ± 1.87

 − 0.20 ± 0.84

0.623

 PME-2 mm

 − 1.11 ± 3.05

0.84 ± 3.08

0.135

0.09 ± 2.49

0.72 ± 2.35

0.467

 − 0.02 ± 2.65

0.72 ± 1.57

0.328

 PME-4 mm

 − 0.51 ± 1.90

 − 1.60 ± 2.47

0.226

 − 0.78 ± 1.82

 − 1.16 ± 1.47

0.363

 − 0.83 ± 1.95

 − 0.68 ± 0.93

0.974

 PME-6 mm

1.06 ± 3.36

 − 1.45 ± 2.19

0.067

 − 1.03 ± 3.21

 − 1.97 ± 2.03

0.265

 − 1.19 ± 3.24

 − 1.81 ± 1.81

0.343

Kmb

0.08 ± 0.20

 − 0.09 ± 0.06

0.013

0.02 ± 0.07

 − 0.08 ± 0.07

0.004

0.00 ± 0.07

 − 0.08 ± 0.07

0.006

  1. SMI-LIKE = small-incision lenticule intrastromal keratoplasty; FS-LIKE = femtosecond laser-assisted lenticule intrastromal keratoplasty; Kmb = mean keratometry of the posterior corneal surface; Postop = postoperative; d = day; m = month; PCE = posterior central elevation; PCE-4 mm = mean posterior corneal elevation in the central 4-mm zone of 13 points; PME-2 mm = mean posterior corneal elevation in the 2-mm optical zone as a function of the meridian of 4 points; PME-4 mm = mean posterior corneal elevation in the 4-mm optical zone as a function of the meridian of 8 points; PME-6 mm = mean posterior corneal elevation in the 6-mm optical zone as a function of the meridian of 14 points