Table 2 Changes in corneal densitometry after SILI with different corneal annular concentric zones and depths

Pre-

16.28 ± 1.91

14.88 ± 1.76

16.57 ± 2.76

22.66 ± 2.84

14.28 ± 1.67

12.85 ± 1.59

16.60 ± 1.89

Post-

 1 week

19.32 ± 2.78

17.14 ± 2.13

17.27 ± 2.73

25.92 ± 3.58

15.66 ± 2.11

13.01 ± 2.05

18.19 ± 2.25

 1 month

19.09 ± 3.10

16.77 ± 2.09

17.33 ± 2.49

25.42 ± 3.10

15.67 ± 1.72

13.15 ± 1.71

18.08 ± 1.81

 3 months

19.00 ± 2.64

16.93 ± 1.66

17.82 ± 2.56

25.57 ± 3.00

15.82 ± 1.81

13.52 ± 1.55

18.30 ± 1.98

 6 months

18.81 ± 3.01

16.90 ± 2.46

17.74 ± 2.95

25.12 ± 4.49

16.03 ± 2.30

13.72 ± 2.55

18.19 ± 2.68

 F value

10.489

10.158

4.143

7.960

8.735

1.579

7.399

 P value

 < .001^*

 < .001^*

0.009^*

 < .001^*

 < .001^*

0.188

 < .001^*