The Effect of LASIK Procedure on Peripapillary Retinal Nerve Fiber Layer and Macular Ganglion Cell-Inner Plexiform Layer Thickness in Myopic Eyes
Table 1
Mean RNFL thickness (μm) and RNFL thickness in 4 quadrants and in 12 sectors measured by OCT before and 1 and 6 months after microkeratome-assisted LASIK.
Parameters
Preoperative (mean ± SD)
1 month postoperatively (mean ± SD)
value
6 months postoperatively (mean ± SD)
value
RNFL Avg
93.86 ± 12.17
94.01 ± 12.04
0.088
94.46 ± 12.27
0.053
RNFL T
62.25 ± 12.09
62.78 ± 12.55
0.138
63.04 ± 12.11
0.245
RNFL N
65.86 ± 11.33
65.69 ± 11.51
0.596
66.07 ± 11.76
0.063
RNFL I
108.58 ± 17.20
108.69 ± 17.23
0.763
109.10 ± 16.88
0.151
RNFL S
101.28 ± 18.57
100.44 ± 18.32
0.051
101.21 ± 18.56
0.861
1 h
90.18 ± 18.24
90.57 ± 18.27
0.069
90.63 ± 18.38
0.054
2 h
84.04 ± 18.77
84.11 ± 18.90
0.844
83.96 ± 19.01
0.869
3 h
55.03 ± 9.93
55.18 ± 10.70
0.063
55.25 ± 10.85
0.056
4 h
58.80 ± 12.59
59.08 ± 13.64
0.433
59.25 ± 12.80
0.063
5 h
84.66 ± 21.94
84.75 ± 22.54
0.794
84.97 ± 21.90
0.391
6 h
119.15 ± 23.92
119.28 ± 23.74
0.692
119.79 ± 24.0
0.063
7 h
120.32 ± 21.87
120.67 ± 21.87
0.063
120.86 ± 22.16
0.052
8 h
62.28 ± 11.36
62.41 ± 11.84
0.454
62.68 ± 11.87
0.272
9 h
52.39 ± 14.96
52.96 ± 13.14
0.496
53.89 ± 13.67
0.057
10 h
72.53 ± 19.67
74.35 ± 18.65
0.106
74.55 ± 17.76
0.076
11 h
114.16 ± 26.22
117.17 ± 23.24
0.116
116.53 ± 23.06
0.226
12 h
102.61 ± 23.74
104.51 ± 20.96
0.212
104.41 ± 21.16
0.240
RNFL Avg, retinal nerve fiber layer average; RNFL T, retinal nerve fiber layer in temporal quadrant; RNFL N, retinal nerve fiber layer in nasal quadrant; RNFL I, retinal nerve fiber layer in inferior quadrant; RNFL S, retinal nerve fiber layer in superior quadrant; 1 h–12 h, retinal nerve fiber layer in 12 RNFL clock hours; SD, standard deviation.
