Table 3 Mean pre- and postoperative GCC thickness measurements (in µm) obtained by OCT in patients and controls, divided into nine sectors, along with average thickness and macular volume, with corresponding values of areas under the ROC curve

Fovea

 Pre-op

189.6 ± 54.1

 < 0.001*

0.99 (0.99 – 1.00)

 Post-op

109.1 ± 36.9

45.8 ± 12.9

 < 0.001*

0.98 (0.95 – 1.00)

 p-value

 < 0.001*

Temporal inner

 Pre-op

184.5 ± 40.3

 < 0.001*

0.99 (0.98 – 1.00)

 Post-op

103.5 ± 27.4

106.9 ± 6.7

0.44

0.60 (0.48 – 0.73)

 p-value

 < 0.001*

Superior inner

 Pre-op

193.8 ± 33.0

 < 0.001*

0.99 (0.99 – 1.00)

 Post-op

116.9 ± 28.7

118.0 ± 7.4

0.81

0.57 (0.44 – 0.70)

 p-value

 < 0.001*

Nasal inner

 Pre-op

182.5 ± 34.7

 < 0.001*

0.96 (0.92 – 1.00)

 Post-op

120.0 ± 25.6

113.2 ± 8.0

0.11

0.57 (0.44 – 0.70)

 p-value

 < 0.001*

Inferior Inner

 Pre-op

180.2 ± 39.8

 < 0.001*

0.91 (0.84 – 0.99)

 Post-op

112.5 ± 18.4

118.0 ± 10.6

0.09

0.62 (0.49 – 0.74)

 p-value

 < 0.001*

Temporal outer

 Pre-op

122.6 ± 29.7

 < 0.001*

0.86 (0.78 – 0.94)

 Post-op

78.6 ± 16.0

91.7 ± 8.4

 < 0.001*

0.84 (0.75 – 0.92)

 p-value

 < 0.001*

Superior outer

 Pre-op

138.3 ± 27.0

 < 0.001*

0.87 (0.79 – 0.96)

 Post-op

94.7 ± 19.1

103.1 ± 8.9

0.01*

0.72 (0.61 – 0.83)

 p-value

 < 0.001*

Nasal outer

 Pre-op

152.5 ± 26.5

 < 0.001*

0.91 (0.85 – 0.97)

 Post-op

110.4 ± 19.3

117.9 ± 10.2

0.03*

0.62 (0.49 – 0.74)

 p-value

 < 0.001*

Inferior outer

 Pre-op

129.9 ± 37.2

 < 0.001*

0.78 (0.67 – 0.89)

 Post-op

90.6 ± 15.9

103.5 ± 10.9

 < 0.001*

0.78 (0.68 – 0.88)

 p-value

 < 0.001*

Average thickness

 Pre-op

139.1 ± 17.9

 < 0.001*

0.96 (0.92 – 1.00)

 Post-op

96.0 ± 14.7

104.3 ± 7.8

0.002*

0.71 (0.61 – 0.82)

 p-value

 < 0.001*