Table 4 Comparison of peripapillary RNFL thickness of the BSS and air groups over 2 years.

Preop

BSS

105.39 ± 17.41

136.68 ± 20.93

109.48 ± 23.50

69.98 ± 17.88

104.86 ± 28.73

149.14 ± 33.55

101.73 ± 21.43

Air

105.88 ± 13.59

130.79 ± 24.34

103.63 ± 23.84

72.71 ± 14.88

102.92 ± 19.90

146.73 ± 22.83

108.62 ± 23.82

p value

0.875

0.211

0.232

0.415

0.698

0.678

0.143

1 month

BSS

117.40 ± 14.17

153.13 ± 21.28

125.98 ± 22.55

82.55 ± 14.68

120.60 ± 23.85

162.80 ± 28.69

105.45 ± 20.12

Air

113.20 ± 13.24

139.89 ± 26.20

117.39 ± 25.60

84.26 ± 17.05

114.72 ± 20.38

156.93 ± 19.77

104.02 ± 16.70

p value

0.159

0.013

0.105

0.622

0.221

0.268

0.720

3 months

BSS

106.17 ± 11.72

136.67 ± 18.04

112.14 ± 21.72

75.86 ± 15.83

111.72 ± 23.45

151.61 ± 22.29

92.61 ± 12.19

Air

103.15 ± 14.36

124.10 ± 27.09

109.44 ± 29.55

83.79 ± 21.00

108.67 ± 18.79

139.15 ± 23.61

87.90 ± 16.22

p value

0.325

0.022

0.655

0.070

0.534

0.022

0.162

6 months

BSS

104.32 ± 12.51

134.00 ± 20.01

111.47 ± 22.13

75.74 ± 16.69

112.68 ± 27.42

148.44 ± 24.53

87.97 ± 13.23

Air

100.78 ± 13.69

126.90 ± 27.3

110.68 ± 28.28

74.78 ± 18.28

106.00 ± 17.35

141.98 ± 25.33

85.38 ± 14.78

p value

0.252

0.213

0.895

0.815

0.208

0.271

0.432

1 year

BSS

100.50 ± 12.82

129.53 ± 22.32

109.68 ± 21.03

73.08 ± 13.81

110.98 ± 27.42

142.35 ± 28.05

82.88 ± 12.27

Air

99.26 ± 13.75

123.95 ± 29.92

106.14 ± 30.78

75.53 ± 18.16

104.93 ± 17.16

140.53 ± 22.65

83.77 ± 13.98

p value

0.672

0.342

0.546

0.492

0.229

0.746

0.759

2 years

BSS

98.31 ± 12.06

128.13 ± 21.47

112.63 ± 22.64

74.88 ± 11.76

107.44 ± 23.13

130.75 ± 40.06

75.94 ± 7.58

Air

97.57 ± 15.55

124.38 ± 31.20

101.90 ± 30.85

70.81 ± 21.71

104.86 ± 18.66

141.38 ± 22.48

83.00 ± 13.92

p value

0.876

0.684

0.250

0.504

0.709

0.312

0.076