Application of different shape tips in torsional microcoaxial phacoemulsification

Abstract

AIM: To compare the clinical outcomes of torsional microcoaxial phacoemulsification by using different shape tips, including Centurion ultrasound tips and Infinity tips.METHODS:A randomized prospective study was conducted. 132 patients(132 eyes)with age-related cataract, were randomly divided into study group(Centurion ultrasound tips)and control group(Infinity ultrasound tips), 66 cases(66 eyes)in each group. Under the same parameter of the Centurion phacoemulsification instrument, all the patients received normal microcoaxial phacoemulsification and intraocular lens implantation. The cumulative dissipated energy(CDE)was recorded during the operation. The best corrected visual acuity(BCVA), corneal endothelial cell density(CD)and central corneal thickness(CCT)were compared at 1wk and 1mo after surgery. Statistical analysis of the data was performed using Student's t test and Chi-square test. RESULTS: There was significant difference on CDE(PPPP>0.05). CONCLUSION: Centurion ultrasound tips can significantly reduce the cumulative dissipated energy and cause less damage to corneal endothelial cells. These findings suggest that centurion vision system phacoemulsification surgery could get earlier visual rehabilitation postoperative.

Keywords

• phacoemulsification
• cataract
• cumulative dissipated energy
• ultrasound tips