Table 2.

Intraocular pressures in pre-operative and post-operative periods

IOP-mmHg	PSG Mean±SD	POAG Mean±SD	p
Pre-operative	34.5±7.7	31.9±7.4	0.622a
Post-operative (1 day)	13.7±3.5	13.1±2.2	0.404b
Post-operative (1 week)	15.3±6.9	14.8±4.6	0.253b
Post-operative (1 month)	15.4±4.6	15.9±6.3	0.420b
Post-operative (3 months)	13.8±1.7	13.9±3.2	0.408b
Post-operative (6 months)	13.4±1.9	14.5±3.2	0.250a
Post-operative (12 months)	13.7±2.2	14.8±3.6	0.419a
		<0.001*c	<0.001*c

^aIndependent Samples t test;

^bMann–Whitney U,

^cFriedman test,

^*P<0.05. SD: Standard deviation.