Table 5 Comparison of peripapillary RNFL thickness before and after surgery in the BSS and air groups.

From: Comparison of the effect of air tamponade versus no tamponade after pars plana vitrectomy for idiopathic epiretinal membrane

Parameter

Location

Global

TS

NS

N

NI

TI

T

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

1 month

BSS

117.40 ± 14.17 (< 0.001)

153.13 ± 21.28 (< 0.001)

125.98 ± 22.55 (< 0.001)

82.55 ± 14.68 (< 0.001)

120.60 ± 23.85 (< 0.001)

162.80 ± 28.69 (0.001)

105.45 ± 20.12 (0.436)

Air

113.20 ± 13.24 (< 0.001)

139.89 ± 26.20 (< 0.001)

117.39 ± 25.60 (< 0.001)

84.26 ± 17.05 (< 0.001)

114.72 ± 20.38 (< 0.001)

156.93 ± 19.77 (0.003)

104.02 ± 16.70 (0.131)

3 months

BSS

106.17 ± 11.72 (0.876)

136.67 ± 18.04 (0.692)

112.14 ± 21.72 (0.383)

75.86 ± 15.83 (< 0.001)

111.72 ± 23.45 (0.006)

151.61 ± 22.29 (0.339)

92.61 ± 12.19 (< 0.001)

Air

103.15 ± 14.36 (0.254)

124.1 ± 27.09 (0.128)

109.44 ± 29.55 (0.013)

83.79 ± 21.00 (0.015)

108.67 ± 18.79 (0.028)

139.15 ± 23.61 (0.043)

87.90 ± 16.22 (< 0.001)

6 months

BSS

104.32 ± 12.51 (0.073)

134 ± 20.01 (0.111)

111.47 ± 22.13 (0.675)

75.74 ± 16.69 (0.051)

112.68 ± 27.42 (0.625)

148.44 ± 24.53 (0.171)

87.97 ± 13.23 (< 0.001)

Air

100.78 ± 13.69 (0.002)

126.9 ± 27.30 (0.027)

110.68 ± 28.28 (0.103)

74.78 ± 18.28 (0.057)

106.00 ± 17.35 (0.248)

141.98 ± 25.33 (0.047)

85.38 ± 14.78 (< 0.001)

1 year

BSS

100.5 ± 12.82 (0.017)

129.53 ± 22.32 (0.029)

109.68 ± 21.03 (0.896)

73.08 ± 13.81 (0.310)

110.98 ± 27.42 (0.264)

142.35 ± 28.05 (0.086)

82.88 ± 12.27 (< 0.001)

Air

99.26 ± 13.75 (< 0.001)

123.95 ± 29.92 (0.016)

106.14 ± 30.78 (0.456)

75.53 ± 18.16 (0.128)

104.93 ± 17.16 (0.442)

140.53 ± 22.65 (0.006)

83.77 ± 13.98 (< 0.001)

2 years

BSS

98.31 ± 12.06 (0.032)

128.13 ± 21.47 (0.149)

112.63 ± 22.64 (0.874)

74.88 ± 11.76 (0.291)

107.44 ± 23.13 (0.203)

130.75 ± 40.06 (0.07)

75.94 ± 7.58 (0.001)

Air

97.57 ± 15.55 (0.005)

124.38 ± 31.20 (0.069)

101.9 ± 30.85 (0.906)

70.81 ± 21.71 (0.819)

104.86 ± 18.66 (0.968)

141.38 ± 22.48 (0.14)

83.00 ± 13.92 (< 0.001)

  1. Values are presented as n or mean ± standard deviation.
  2. Preop preoperative, RNFL retinal nerve fiber layer, BSS balanced salt solution, Air air tamponade, TS temporal superior, NS superior nasal, N nasal, NI inferior nasal, TI inferior temporal, T temporal.
  3. The value in ( ) is the p value compared to before operation (paired t test).
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