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Related Experiment Videos

Quarters extraction technique for manual phacofragmentation(1).

J Akura1, S Kaneda, M Ishihara

  • 1Kushimoto Rehabilitation Center, (Akura, Kaneda, Ishihara), Kushimoto, Japan. akura@skyblue.ocn.ne.jp

Journal of Cataract and Refractive Surgery
|October 6, 2000
PubMed
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The quarters extraction technique safely removes cataract nuclei by splitting them into fragments. This method shows minimal endothelial cell loss, making it suitable for most cataract surgeries.

Area of Science:

  • Ophthalmology
  • Surgical Techniques

Background:

  • Cataract surgery involves nucleus extraction.
  • Minimizing intraoperative complications and endothelial cell loss is crucial.

Purpose of the Study:

  • To describe and evaluate the "quarters extraction technique" for cataract nucleus removal.
  • To assess the safety and efficacy of this novel surgical approach.

Main Methods:

  • A 5.5-6.5 mm sclerocorneal incision was used.
  • The nucleus was manually split, with fragments removed sequentially using a nucleus puncher and claw vectis.
  • Standard steps like capsulorhexis, hydrodissection, and cortex aspiration were performed.

Main Results:

  • No posterior capsule ruptures occurred in 120 cases.

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  • Mean endothelial cell loss at 3 months was 8.7% +/- 6.5% (SD).
  • The technique is safe and easy, except for very large nuclei.

    • Conclusions:

    • The quarters extraction technique offers a safe and effective method for cataract nucleus removal.
    • Low endothelial cell loss suggests good preservation of ocular structures.
    • This technique is a viable alternative for most cataract surgeries.