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Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
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Related Experiment Video

Updated: Jun 20, 2026

Rotating the Intraocular Lens to Prevent Posterior Capsular Opacification in Cataract Surgeries
04:59

Rotating the Intraocular Lens to Prevent Posterior Capsular Opacification in Cataract Surgeries

Published on: July 7, 2023

Decrease and conquer: Phacoemulsification technique for hard nucleus cataracts.

Hong Kyun Kim1

  • 1Department of Ophthalmology, Kyungpook National University School of Medicine, Daegu, South Korea. okeye@knu.ac.kr

Journal of Cataract and Refractive Surgery
|September 29, 2009
PubMed
Summary

This study introduces a new technique for hard nucleus cataract surgery. It improves phacoemulsification control and safety by separating the nucleus core from the epinucleus, enhancing surgical outcomes.

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Last Updated: Jun 20, 2026

Rotating the Intraocular Lens to Prevent Posterior Capsular Opacification in Cataract Surgeries
04:59

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Published on: July 7, 2023

A Novel Capsulorhexis Technique Using Shearing Forces with Cystotome
04:53

A Novel Capsulorhexis Technique Using Shearing Forces with Cystotome

Published on: May 15, 2010

Area of Science:

  • Ophthalmology
  • Surgical Techniques

Background:

  • Phacoemulsification is a common cataract surgery method.
  • Hard nucleus cataracts present challenges for conventional techniques like nucleofractis.
  • Improving safety and control during these procedures is crucial.

Purpose of the Study:

  • To present a novel technique for phacoemulsification in hard nucleus cataract surgery.
  • To enhance intraoperative control and patient safety.
  • To offer an alternative to complete lens fragmentation.

Main Methods:

  • A three-step technique is described: circumferential disassembly, central nucleus volume reduction, and remnant management.
  • This method focuses on separating the endonuclear core from the epinucleus.
  • The technique is designed for hard nucleus cataract cases.

Main Results:

  • The described technique facilitates safer phacoemulsification.
  • It provides more effective lens fragmentation for hard nuclei.
  • Improved control during the procedure was observed.

Conclusions:

  • This technique offers a safer and more effective approach to phacoemulsification for hard nucleus cataracts.
  • It represents an advancement in managing challenging cataract cases.
  • The method enhances surgical precision and patient outcomes.