[ Objective ] To analyze early changes of intraocular pressure (IOP) after senile cataract surgery. [Methods] 104 age-related cataract patients (119 eyes) were divided into 2 groups: group A (small slices and nonphacoemulsification) and group B (phacoemulsification). The IOP of 104 age-related cataract patients(119 eyes) was observed and analyzed before operation and at 2, 4, 6, 8, 10, 24 and 48 hours after senile cataract surgery.[Results] The IOP of all patients were increased at 2, 4, 6, 8, 10, 24 and 48 hours after senile catarac...