Global Evaluation of Dual-Linear Versus Co-Linear Foot Pedal Control During Cataract Surgery
Purpose
To evaluate the benefits of dual-linear versus co-linear control of phacoemulsification and aspiration in cataract surgery.
Methods
In this global field observation study, surgeons worldwide who performed at least 5 routine cataract surgeries using the Stellaris/Stellaris PC system (Bausch + Lomb) in either dual-linear or co-linear mode were surveyed online about each surgery. Survey questions concerned surgical parameters and the surgeon’s reasons for choosing dual-linear or co-linear foot pedal control.
Results
A total of 149 surveys were completed and analyzed. Co-linear control was used in 21 surgeries performed by 4 surgeons, and dual-linear control was used in 128 surgeries performed by 28 surgeons. Leading reasons for choosing dual-linear control were the phaco technique used (i.e., phaco chop and phaco flip) and the grade of cataract. The mean volume of balanced salt solution used was 66 mL in surgeries performed using dual-linear control and 84 mL in surgeries performed using co-linear control.
Conclusion
Surgeons reported choosing dual-linear rather than co-linear foot pedal control on the Stellaris/Stellaris PC to achieve better surgical efficiency and control in more difficult cases. Dual-linear control was also associated with less fluid use during routine cataract surgery, potentially resulting in less trauma to the corneal epithelium.