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Iris claw phakic intraocular lens for high myopia

J L Menezo1, J A Aviño, A Cisneros

  • 1La Fe University Hospital, University of Valencia School of Medicine, Department of Ophthalmology, Spain.

Journal of Refractive Surgery (Thorofare, N.J. : 1995)
|November 14, 1997
PubMed
Summary

The Worst-Fechner iris claw intraocular lens (IOL) effectively corrects high myopia with stable results. Long-term follow-up shows acceptable endothelial cell loss and no vision-threatening complications.

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Area of Science:

  • Ophthalmology
  • Refractive Surgery

Background:

  • High myopia correction often involves surgical interventions.
  • The Worst-Fechner iris claw intraocular lens (IOL) is used for high myopia.
  • Long-term safety data for this IOL implantation were previously limited.

Purpose of the Study:

  • To evaluate the long-term safety and efficacy of Worst-Fechner IOL implantation.
  • To assess refractive stability and visual acuity outcomes.
  • To analyze corneal endothelial cell changes and other potential risks.

Main Methods:

  • A retrospective study of 94 eyes from 62 patients with myopia >= -7.00 D.
  • Patients underwent Worst-Fechner IOL implantation.
  • Evaluated lens position, blood-aqueous barrier permeability, and corneal endothelial cell density.

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Main Results:

  • Mean follow-up was 48.9 months; 61% achieved uncorrected visual acuity >= 20/40.
  • 82% gained >= 2 lines of spectacle-corrected visual acuity; 79% were within +/- 1.00 D of emmetropia.
  • Mean endothelial cell loss was 17.9% at 5 years, with cell morphology tending toward baseline.

Conclusions:

  • Worst-Fechner phakic IOL implantation is effective for high myopia correction.
  • Refractive outcomes are stable, and endothelial cell damage is within acceptable limits.
  • The procedure demonstrates an acceptable safety profile with no major complications.