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Related Experiment Videos

Phakic refractive lens experience in Spain.

Jairo E Hoyos1, Dimitrii D Dementiev, Melania Cigales

  • 1Instituto Oftalmológico Hoyos, Barcelona, Spain. jairoca@iohoyos.com

Journal of Cataract and Refractive Surgery
|November 30, 2002
PubMed
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Phakic refractive lens (PRL) implantation offers a safe and predictable method for correcting high myopia and hyperopia, often improving visual acuity. This study evaluated PRL efficacy with a minimum 12-month follow-up.

Area of Science:

  • Ophthalmology
  • Refractive Surgery
  • Intraocular Lenses

Background:

  • High myopia and hyperopia present significant challenges for vision correction.
  • Phakic refractive lenses (PRLs) are an option for refractive error correction.
  • Evaluating the long-term outcomes of PRL implantation is crucial.

Purpose of the Study:

  • To assess the efficacy, predictability, and safety of phakic refractive lens (PRL) implantation for correcting high myopia and hyperopia.
  • To determine the visual acuity outcomes and refractive stability following PRL surgery.
  • To identify and analyze any complications associated with PRL implantation.

Main Methods:

  • A prospective study involving the implantation of PRLs in 31 eyes (17 myopic, 14 hyperopic) with severe refractive errors.

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  • Preoperative and postoperative ophthalmologic examinations were conducted.
  • A minimum follow-up period of 12 months was maintained for all participants.

    • Main Results:

    • At 1 year, mean postoperative spherical equivalent was -0.22 D for myopic eyes and -0.38 D for hyperopic eyes.
    • 82% of myopic eyes and 79% of hyperopic eyes achieved refraction within +/-1.00 D of the target.
    • Visual acuity improved in 65% of myopic eyes; no eyes lost lines of vision. Complications included pupillary block, pigment dispersion, and temporary intraocular pressure rise.

    Conclusions:

    • PRL implantation is a safe, predictable, and stable method for correcting high myopia and hyperopia.
    • The procedure can lead to improvements in best-corrected visual acuity.
    • Serious complications like progressive cataract or pigmentary glaucoma were not observed in this study.