Mean differences of lOPs at 6 and 12 hours after surgery were significantly lower in clonidine group [ +0.41 4.55 ( p = 0.612 ) , 0.06 3.62 ( p = 0.922 ) ] than placebo group [ 5.77 4.25 ( p = < 0.001 ) , 4.70 3.19 p < 0.001 ) ] but was more than preoperative intraocular pressures in both .
