Mean (SD) of pressure before magnesium application	Mean (SD) of pressure after magnesium application	p(SD)-value
IOP right	15.23 (1.72)	15.87 (1.07)	0.092
IOP left	15.80 (1.71)	15.83 (1.15)	0.930
RPV right	22.67 (2.12)	20.67 (1.09)	<0.001
RPV left	23.40 (1.81)	21.10 (1.54)	<0.001