The mean IOP 2 hours after surgery was 10.19 6.78 mm Hg in group A and 9.92 7.01 mm Hg in group B. Twenty-four hours and 1 month after surgery , the mean IOP was 14.52 5.59 mm Hg and 13.21 3.5 mm Hg , respectively , in group A , and 15.45 5.77 mm Hg and 13.1 3.44 mm Hg , respectively , in group B.