To Explore The Impact Of Different Intraocular Pressure Settings On The Safety And Prognosis In Phacoemulsification

 To explore the impact of different intraocular pressure settings on the safety and prognosis in phacoemulsification

 1 clinic in China.

 Age related cataract patients who met the inclusion criteria and underwent phacoemulsification from January 2022 to September 2023 at Yantai Aier Eye Hospital. According to different intraocular pressure settings during surgery, they were divided into two groups using a random number table method: the 20 mmHg group (experimental group) and the 60 mmHg group (control group). The intraoperative ultrasound energy, the occurrence of surges, the occurrence of intraoperative complications, as well as the changes in corneal thickness and corneal epithelial layer thickness after surgery were collected.

There were 55 eyes in the experimental group and 55 eyes in the control group. The age of patients was (68.73±5.94) and (67.93±6.75) years old in the experimental group and control group respectively (p=0.511). The CDE during surgery in the experimental group and control group were (5.22±3.31) and (4.70±2.83), respectively (p=0.381). The ASM during surgery in the experimental group and control group were (0.95±2.77) and (7.24±6.34), respectively. The experimental group showed a significant decrease in intraoperative surges (p＜0.001). There was no statistically significant difference in the changes in corneal thickness and corneal epithelial thickness before and after surgery between the two groups (p=0.913, 0.825). 

 A 20 mmHg intraocular pressure setting during phacoemulsification can significantly reduce the occurrence of intraoperative surges and increase the safety of the surgery.