Table 4 The result of the comparison between prone and supine position.

From: Evaluation of intraocular gas using magnetic resonance imaging after pars plana vitrectomy with gas tamponade for rhegmatogenous retinal detachment

 

Prone Position

Supine Position

P Value

Gas volume (% to vitreous cavity)

60.1 ± 4.0

60.0 ± 4.0

1.0

Angle of Supraduction to the perpendicular line(°)

16.1 ± 2.8

1.8 ± 3.5

0.012

Gas contact rates with retina (%)

Superior-posterior

98.2 ± 1.8

5.2 ± 3.2

0.0004

Superior-anterior

40.3 ± 10.1

89.1 ± 10.7

0.006

Inferior-posterior

84.9 ± 5.5

7.9 ± 3.1

0.0008

Inferior-anterior

1.1 ± 1.1

90.1 ± 5.5

0.0004

  1. Values are mean ± standard error.
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