Long-Term Clinical Outcomes of Small-Incision Femtosecond Laser-Assisted Intracorneal Concave Lenticule Implantation in Patients with Keratoconus
Table 1
Postoperative changes in corneal morphology.
Parameters
Time
Preop
1wk Postoperatively
1 mo Postoperatively
3 mo Postoperatively
6 mo Postoperatively
12 mo Postoperatively
24 mo Postoperatively
36 mo Postoperatively
60 mo Postoperatively
F
P60mo
Anterior, K1, D
51.60 ± 1.79
52.37 ± 2.86
52.27 ± 2.63
51.16 ± 2.31
51.19 ± 2.33
51.14 ± 2.25
50.73 ± 2.13
50.37 ± 2.12
50.11 ± 2.06
0.715
0.677
Anterior, K2, D
58.54 ± 2.47
59.56 ± 2.76
59.76 ± 2.78
59.04 ± 2.81
58.20 ± 2.62
58.40 ± 2.71
57.66 ± 2.65
58.01 ± 2.71
57.24 ± 2.71
1.372
0.233
Posterior, K1, D
−7.74 ± 0.43
−8.16 ± 0.66
−8.31 ± 0.61
−7.94 ± 0.39
−8.04 ± 0.53
−8.04 ± 0.55
−7.96 ± 0.52
−8.04 ± 0.49
−7.98 ± 0.50
1.377
0.231
Posterior, K2, D
−8.96 ± 0.48
−9.39 ± 0.61
−9.43 ± 0.55
−9.19 ± 0.48
−9.16 ± 0.52
−9.18 ± 0.60
−9.10 ± 0.58
−9.21 ± 0.52
−9.11 ± 0.55
1.470
0.193
Elevation, (Back), μm
94.14 ± 13.67
117.00 ± 19.98
100.57 ± 14.29
106.28 ± 14.89
101.57 ± 15.28
99.29 ± 14.95
101.29 ± 13.09
99.28 ± 12.60
96.01 ± 12.96
1.776
0.105
AC volume, mm3
190.75 ± 11.03
184.50 ± 12.19
183.25 ± 12.24
185.00 ± 10.43
182.63 ± 11.47
182.88 ± 10.66
184.63 ± 12.45
186.63 ± 13.52
185.38 ± 13.13
0.752
0.646
AC depth, mm
3.58 ± 0.07
3.33 ± 0.09
3.45 ± 0.10
3.50 ± 0.10
3.53 ± 0.10
3.51 ± 0.10
3.54 ± 0.13
3.59 ± 0.14
3.57 ± 0.13
2.79
0.10
Total CD, GSU
15.98 ± 0.57
19.58 ± 0.89
18.98 ± 0.73
17.68 ± 0.68
17.10 ± 0.67
16.21 ± 0.45
15.40 ± 0.22
15.81 ± 0.39
15.87 ± 0.53
0.09
0.777
The anterior K1, DK2; posterior K1, DK2; and elevation back remained stable postoperatively. The value was no statistically significant compared with preoperative levels. D, diopters; K1, minimum central keratometry; K2, maximum central keratometry; AC, anterior chamber; CD, corneal densitometry; GSU, grayscale unit.
