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Related Concept Videos

Clipper Circuit01:18

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Related Experiment Video

Updated: Oct 2, 2025

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A Counter Prechop Technique Using a Modified Universal Prechopper in Combination with or without Using a Universal

Hyungil Kim1, Younghoon Jung2, Mikio Inamura3

  • 1Gyeongju St. Mary's Eye Clinic, Gyeongju, Republic of Korea.

Clinical Ophthalmology (Auckland, N.Z.)
|March 1, 2022
PubMed
Summary

A new modified prechop technique for cataract surgery offers comparable safety and efficacy to the standard phaco-chop method. This versatile approach is suitable for various cataract complexities, ensuring excellent post-operative outcomes.

Keywords:
cataractcounter prechopprechop

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Area of Science:

  • Ophthalmology
  • Surgical Techniques
  • Cataract Surgery

Background:

  • Cataract surgery techniques aim to improve visual outcomes and patient safety.
  • The phaco-chop technique is a widely used method for breaking up the cataractous lens.
  • An alternative prechop technique is explored to enhance surgical versatility.

Purpose of the Study:

  • To introduce and evaluate an alternative prechop technique for cataract surgery.
  • To assess the efficacy of a modified universal chopper in prechop procedures.
  • To compare the outcomes of the modified prechop technique with the conventional phaco-chop method.

Main Methods:

  • Retrospective review of patients undergoing cataract surgery.
  • Comparison between phaco-chop and modified prechop techniques.
  • Analysis of endothelial cell count (ECC) and central corneal thickness (CCT) pre- and post-operatively.

Main Results:

  • No statistically significant differences in pre-operative or post-operative ECC and CCT between the groups.
  • The modified prechop technique involved a 1.7 mm neck prechopper, with or without a universal chopper for different cataract grades.
  • Study included 104 eyes in the modified prechop group and 97 in the phaco-chop group.

Conclusions:

  • The modified prechop technique is safe, easy, and versatile.
  • This technique is applicable to a wide range of cataract complexities.
  • Post-operative results are not inferior to the conventional phaco-chop technique.