Comparison of 4D Ultrasound and Torsional Ultrasound Phacoemulsification Techniques for Dense Nuclear Cataracts: An Ex Vivo Bench Study - Takeaways - MDSpire

Comparison of 4D Ultrasound and Torsional Ultrasound Phacoemulsification Techniques for Dense Nuclear Cataracts: An Ex Vivo Bench Study

  • By

  • Rosa Giglio

  • Daniele Tognetto

  • April 16, 2026

  • 0 min

Share

  • 1

    The study compared 4D ultrasound and torsional ultrasound techniques for emulsifying dense nuclear cataracts in an ex vivo model.

  • 2

    4D ultrasound using the Alcon UNITY system demonstrated significantly shorter emulsification times compared to the torsional mode of the CENTURION system.

  • 3

    Effective phaco time (EPT) and cumulative dissipated energy (CDE) were lower for the UNITY system, indicating improved efficiency in emulsification.

  • 4

    Video assessments revealed that 4D ultrasound maintained better fragment engagement with less turbulence than the torsional ultrasound technique.

  • 5

    Further research with additional specimens is necessary to confirm if the bench study findings translate into clinical benefits during surgery.

Original Source(s)

Comparison of 4D Ultrasound and Torsional Ultrasound Phacoemulsification Techniques for Dense Nuclear Cataracts: An Ex Vivo Bench Study

  • by Rosa Giglio, Daniele Tognetto

  • April 16, 2026

Related Content

Dropless Cataract Surgery: What is the fuss about?

As cataract surgery continues to evolve, the focus is shifting beyond the operating theatre to the weakest part of the patient pathway – postoperative drops

Advanced bilateral glaucoma decades after first-generation Fyodorov ‘collar-button’ anterior–posterior phakic intraocular lens implantation: a case report and clinical management considerations

Impact of extended reality (XR) simulation on ophthalmology training outcomes: an updated systematic review and meta-analysis