Table 2.

Mean IOP (mmHg) of VC and PV over 36 months

Time	Pre-operative	12 months	24 months	36 months
No. of eyes PV	427	396	367	356
No. of eyes VC	193	178	157	146
PV mean IOP (mmHg)	22.54 ± 5.10	14.62 ± 3.26	14.81 ± 3.44	14.44 ± 3.10
VC mean IOP (mmHg)	24.06 ± 6.45	15.03 ± 4.18	14.51 ± 3.63	14.31 ± 3.33
	*p = 0.0017	*p = 0.2051	*p = 0.3733	*p = 0.6815

*2-tailed unpaired t test