This study was conducted to evaluate differences in IOP before and after phacoemulsification surgery. Total number of 38 eyes were operated upon and intraocular pressure was recorded using a Goldmann tonometer. Types of viscoelastic and IOL were also noted. The increase in IOP was higher in the Viscoat group, 14.28%, as compared to the Hydroxypropyl methylcellulose (HPMC) group, 7.14%. Mean IOP was 14.71 mmHg after surgery as compared to 12.42 mmHg preoperatively.