Table 2. Mean IOP values at pre- and postoperative visits of both groups.

Groups	Preop.	Day 1	1 month	3 months	6 months	1 year
Group I	29.2±3.6	8.7±2.3	11.6±3.8	12.1±4.2	12.6±5.4	12.8±5.2
Group II	31.5±2.7	9.1±1.5	10.9±4.5	12.8±5.3	13.7±6.7	15.6±5.9
T-test	0.0344	0.0411	0.0752	0.0779	0.1092	0.2131
P-value	0.091	0.0823	0.0795	0.077	0.0510	0.0487*

*Statistically significant showed statistically significant difference in IOP between the studied groups at only the last postoperative visit (P<0.05).