Figure 6. Change in BMO-ALCSD after 30 min of IOP elevation.
The plot shows ΔBMO-ALCSD values for each animal 30 min into IOP elevation to either 25 or 40 mmHg. For both pressure levels, 4 animals exhibited posterior (negative) BMO-ALCSD displacement, whereas the other 4 animals demonstrated anterior (positive) displacement. In animals with posterior movement of the BMO-ALCSD the translaminar pressure difference (IOP – cerebrospinal fluid pressure) was likely the driving force, and anterior movement of the BMO-ALCSD was likely driven by hoop stress and resulting expansion of the scleral canal, pulling the lamina taught and in towards the eye.