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Angle-supported phakic intraocular lenses in hyperopia.

Antonio Leccisotti1

  • 1Ophthalmic Surgery Unit, Casa di Cura Rugani, Siena, Italy. leccisotti@libero.it

Journal of Cataract and Refractive Surgery
|September 1, 2005
PubMed
Summary

Angle-supported phakic intraocular lenses (PIOLs) effectively correct high hyperopia. This study shows PIOL implantation is a safe and predictable option with minimal complications for refractive error correction.

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Area of Science:

  • Ophthalmology
  • Refractive Surgery
  • Intraocular Lenses

Background:

  • High hyperopia presents a significant challenge for vision correction.
  • Phakic intraocular lenses (PIOLs) offer a surgical alternative for correcting refractive errors.
  • Angle-supported PIOLs are designed for implantation in the anterior chamber.

Purpose of the Study:

  • To assess the safety and efficacy of angle-supported PIOLs for correcting hyperopia.
  • To evaluate visual outcomes and complication rates associated with this PIOL type.

Main Methods:

  • A prospective case series involving 22 patients (42 eyes) with high hyperopia.
  • Implantation of a specific type of angle-supported PIOL (Morcher) via a sclero-corneal tunnel.
  • Preoperative and postoperative refractive data, including defocus equivalent (DEQ) and spherical equivalent (SE), were analyzed.

Main Results:

  • Postoperative spherical equivalent (SE) averaged 0.38 D, with 81% of eyes within +/-1 D of emmetropia.
  • Significant reduction in mean defocus equivalent (DEQ) from 7.30 D to 0.93 D.
  • Reported complications included night halos (10%), pupil ovalization (7%), and a 6% endothelial cell loss at 12 months.

Conclusions:

  • Angle-supported PIOLs provide a safe and predictable method for correcting high hyperopia.
  • The procedure demonstrated favorable visual outcomes with a manageable complication profile.
  • This PIOL type represents a viable option for patients seeking correction of significant hyperopic refractive errors.

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