Cataract ultrasound emulsion surgery is now widely performed and popularized, and has become the mainstream method of cataract surgery. Traditional cataract ultrasound emulsification surgery is performed by using an ultrasound emulsifier to crush the cloudy lens nucleus through a 3.0-3.2mm sized corneal or scleral incision with the application of 40KHz ultrasound through the rapid back and forth movement of an ultrasound needle to make it chylomicronous, then aspirate it together with the cortex and finally implant a posterior chamber type IOL. In recent years, cataract ultrasound emulsification has been developed rapidly in all aspects of surgical techniques, surgical instruments and ultrasound emulsifier performance, especially in the performance of ultrasound emulsifier, which has been improved significantly.
In 2006, Alcon USA began using the Ozil handle with twist mode on its latest generation ultrasound emulsifier, the Infiniti, ushering in a new era of twist ultrasound. It uses a 45º curved thin needle with left and right lateral oscillation design, changing the traditional anterior and posterior longitudinal movement. 32KHz twist ultrasound produces only one-third of the heat of traditional ultrasound, effectively avoiding thermal burns and other damage to the surgical incision and reducing astigmatism caused by surgery. At the same time, both left and right lateral oscillations can emulsify the lens, resulting in higher surgical efficiency and better safety. The use of twisting ultrasound allows for smaller incisions in cataract surgery. Alcon is developing a finer cannula and needle that will allow for 1.8 mm incision cataract ultrasound surgery in the near future.
The application of the new technology will certainly lead to better visual quality and faster postoperative vision reconstruction for cataract patients.