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Torsional power study using CENTURION phacoemulsification technology.

Jason D Jensen1, Dallas S Shi1, Mark S Robinson1

  • 1Department of Ophthalmology and Visual Sciences, John A. Moran Eye Center, University of Utah, Salt Lake City, Utah, USA.

Clinical & Experimental Ophthalmology
|March 22, 2016
PubMed
Summary
This summary is machine-generated.

Optimal phacoemulsification efficiency with the CENTURION Vision System is achieved at 60% torsional power. Increasing power beyond this level yielded no additional benefits in lens removal time or reduced chatter.

Keywords:
animalcataractcataract extractioncrystallinelensmechanicalmodelstorsion

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Area of Science:

  • Ophthalmology
  • Surgical Technology

Background:

  • Phacoemulsification is a key step in cataract surgery.
  • Optimizing energy levels is crucial for surgical efficiency and patient safety.

Purpose of the Study:

  • To evaluate the impact of varying torsional power settings on phacoemulsification efficiency.
  • To determine the optimal power level for the CENTURION Vision System.

Main Methods:

  • Porcine lenses were emulsified using the CENTURION Vision System with torsional power varied from 10% to 100%.
  • Efficiency was measured by time to lens removal.
  • Chatter, defined as lens fragment repulsions, was quantified.

Main Results:

  • Phacoemulsification efficiency increased linearly with torsional power up to 60%.
  • No significant efficiency gains were observed beyond 60% power.
  • Lens fragment chatter decreased linearly as power increased up to 60%, with no further improvement at higher levels.

Conclusions:

  • Torsional ultrasound power significantly impacts phacoemulsification efficiency and chatter up to 60%.
  • Beyond 60% power, efficiency gains are negligible, and chatter does not further decrease.
  • A torsional power setting of 60% is recommended for optimal efficiency and minimal chatter with the CENTURION System.