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Related Experiment Videos

Iris-claw lens in phakic eyes to correct hyperopia: preliminary study

P U Fechner1, D Singh, K Wulff

  • 1Robert Koch Hospital, Hannover-Gehrden, Germany.

Journal of Cataract and Refractive Surgery
|March 12, 1998
PubMed
Summary

Implanting convex, iris-fixated, anterior chamber intraocular lenses (IOLs) in phakic eyes effectively corrects high hyperopia. While refractive outcomes are successful, long-term endothelial microscopy is crucial for monitoring clinical risks.

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Area of Science:

  • Ophthalmology
  • Surgical Innovation
  • Refractive Error Correction

Background:

  • High hyperopia presents a significant challenge for vision correction.
  • Phakic intraocular lenses (IOLs) offer a potential solution for refractive errors.
  • Iris-fixated anterior chamber IOLs are an option for specific patient groups.

Purpose of the Study:

  • To assess the efficacy and safety of convex, iris-fixated, anterior chamber IOLs in phakic eyes.
  • To evaluate the refractive outcomes and potential complications associated with this IOL type.
  • To determine the long-term results of this surgical approach for high hyperopia.

Main Methods:

  • A retrospective study involving two centers: Robert Koch Hospital (Germany) and Dr. Daljit Singh Eye Hospital (India).

Related Experiment Videos

  • Implantation of convex, iris-fixated, anterior chamber IOLs in 69 phakic eyes (2 at Center A, 67 at Center B).
  • Follow-up durations varied: 91 months for Center A, mean 78 months (range 12-120 months) for Center B.

    • Main Results:

    • Successful refractive correction of high hyperopia was achieved in most cases.
    • At Center B, corneas remained clear, and no iritis or glaucoma was observed in the majority of eyes.
    • One patient experienced complications including glaucoma and corneal degeneration, attributed to inadequate postoperative care due to late follow-up.

    Conclusions:

    • Convex iris-claw lens implantation in the anterior chamber of phakic eyes is a successful refractive procedure for high hyperopia.
    • The clinical risks associated with this IOL implantation appear manageable.
    • Mandatory lifelong monitoring using endothelial microscopy is essential to manage potential long-term complications.