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Chronic Cranial Window Technique for Repeated Cortical Recordings During Anesthesia in Pigs
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Cortical aspiration - The "POPS" technique.

Viraj A Vasavada1, Abhay R Vasavada1, Vijayevarshcini Dhanasekaran1

  • 1Iladevi Cataract and IOL Research Centre, Ahmedabad, Gujrat, India.

Indian Journal of Ophthalmology
|October 30, 2020
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Summary

A novel POPS (positioning, occlusion, posterior displacement, and swiping) technique safely removes cataract cortex and lens epithelial cells (LEC) by minimizing stress on the capsulozonular complex during surgery.

Keywords:
Capsule-zonular stresscortex aspirationocclude posterior detachmentpositionstrippingtechnique

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Area of Science:

  • Ophthalmology
  • Surgical Techniques
  • Cataract Surgery

Background:

  • Cataract surgery requires effective removal of cortical material and lens epithelial cells (LEC).
  • Conventional methods can cause stress to the capsulozonular complex, potentially leading to complications.

Purpose of the Study:

  • To describe and evaluate a new step-by-step technique, POPS (positioning, occlusion, posterior displacement, and swiping), for cortex aspiration.
  • To demonstrate the safety and efficacy of the POPS technique in reducing stress during cataract surgery.

Main Methods:

  • The POPS technique involves specific steps: positioning the aspiration probe, occluding the port, posterior displacement of fibers, and tangential swiping movements.
  • Vacuum is gradually increased during swiping to aspirate cortical fibers and LEC towards the center.

Main Results:

  • The POPS technique allows for complete removal of equatorial fibers and LEC.
  • This method minimizes stress on the capsulozonular complex compared to conventional radial pull techniques.

Conclusions:

  • The POPS technique offers a safer and more effective approach for cortical and LEC removal in cataract surgery.
  • This method is expected to reduce zonular stress, enhancing surgical outcomes.