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Fish-tail technique for capsular tension ring insertion.

Romesh I Angunawela1, Brian Little

  • 1Department of Ophthalmology, Royal Free Hospital, London, United Kingdom.

Journal of Cataract and Refractive Surgery
|May 1, 2007
PubMed
Summary
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A novel fish-tail technique simplifies capsular tension ring (CTR) insertion for eyes with zonular instability. This method reduces forces on the lens capsule, preventing further damage during cataract surgery.

Area of Science:

  • Ophthalmology
  • Surgical Techniques

Background:

  • Zonular instability presents challenges during cataract surgery.
  • Standard capsular tension ring (CTR) insertion can exert damaging forces on the weakened zonules.

Purpose of the Study:

  • To introduce and describe a novel, minimally traumatic technique for CTR insertion.
  • To evaluate the efficacy of the fish-tail technique in managing zonular instability.

Main Methods:

  • A fish-tail configuration of the CTR is created by folding and overlapping its trailing loops.
  • The apex of the folded CTR is inserted through the surgical incision into the capsular bag.
  • The remaining CTR arms are then gently placed within the bag without rotation or dialing.

Main Results:

Related Experiment Videos

  • The fish-tail technique effectively inserts the CTR while minimizing tangential and shearing forces.
  • This method avoids the need for additional manipulation or rotation of the CTR.
  • The technique is described as simple and effective for cases with zonular compromise.

Conclusions:

  • The fish-tail technique offers a safe and efficient method for CTR insertion in eyes with zonular instability.
  • It reduces the risk of further iatrogenic damage to the zonular apparatus.
  • This approach simplifies a critical step in complex cataract surgeries.