Objective     To investigate the changes of systolic pressure

diastolic pressure

oculocardiac reflex (OCR) and vision of patients suffering from cardiovascular disease when they applied phacoemulsification.      Methods     Totally 168 cases (182 eyes) who had underwent phacoemulsification were analyzed in random selection. Of all the cases

97 (106 eyes) were combined with cardiovascular disease

the others were without any general disease. The changes of blood pressure

OCR

ECG and vision were observed in two groups.      Results     Compared with preoperative period

the mean systolic blood pressure increased significantly during operation

but the differences of diastolic pressure

OCR

ECG and vision were not significant between the two groups.      Conclusion     The safety and reliability of the surgery depend on reasonable medication

careful surgical procedure and monitoring for the patients with cardiovascular disease in the peri-operation period.