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