At baseline , there were no significant differences between the groups in regards to age ( t-test , p = 0.44 ) , gender ( ( 2 ) , p = 0.14 ) , pseudoexfoliation glaucoma ( ( 2 ) , p = 0.07 ) , time between SLT 1 and SLT 2 ( t-test , p = 0.78 ) , IOP before SLT 1 ( t-test , p = 0.78 ) , or IOP before SLT 2 ( t-test , p = 0.32 ) .