Table 2:

Comparisons of attenuation values in the visual tract structures between silicone oil migration lesions and normal regionsa

Structures (Lesion:Normal)Silicone Oil Migration LesionNormal RegionPb
Optic head (2:112)69.2 ± 12.429.8 ± 10.2<.001
Optic nerve (5:119)59.9 ± 11.630.9 ± 8.6<.001
Optic chiasm (3:53)74.2 ± 11.025.6 ± 6.9<.001
Optic tract (3:109)70.1 ± 4.728.7 ± 7.2<.001

  • ↵a Data are presented as means. Attenuation values are in Hounsfield units.

  • ↵b Mann-Whitney U test.