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A Prechop Technique Using a Reverse Chopper.

Yang Zhao1, Jiaxin Li2, Ke Yang1

  • 1a Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology and Visual Science Key Laboratory , Beijing , China.

Journal of Investigative Surgery : the Official Journal of the Academy of Surgical Research
|December 30, 2017
PubMed
Summary

This study introduces a manual prechop technique using a reverse chopper for lens nucleus splitting. The method is effective for hard nuclei, reducing phacoemulsification time and energy with no capsule breakage.

Keywords:
cataractnucleioverripeprechopsplit

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Area of Science:

  • Ophthalmology
  • Surgical Techniques

Background:

  • Cataract surgery often requires nucleus fragmentation.
  • Existing methods may pose risks with dense or fragile nuclei.

Purpose of the Study:

  • To describe a novel manual prechop technique.
  • To evaluate the use of a new reverse chopper for lens nucleus splitting.

Main Methods:

  • A reverse chopper and Nagahara chopper are used diagonally in the lens nucleus.
  • Choppers are pushed horizontally to split the nucleus into two parts.

Main Results:

  • The reverse chopper proved effective for hard nuclei.
  • No capsule breakage occurred; suspensory ligaments remained intact with fragile ligaments.
  • Phacoemulsification time and energy were significantly reduced.

Conclusions:

  • The prechop technique is suitable for grade III-V and overripe nuclei.
  • It is also beneficial for eyes with fragile suspensory ligaments.
  • The procedure is simple with a short learning curve.