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Phakic intraocular lenses.

Carlo F Lovisolo1, Dan Z Reinstein

  • 1Department of Ophthalmology and Visual Sciences, San Raffaele Hospital and QuattroElle Eye Center, Milan, Italy, and Department of Ophthalmology, St. Thomas Hospital-Kings College, London, UK. loviseye@fastwebnet.it

Survey of Ophthalmology
|November 3, 2005
PubMed
Summary
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Phakic intraocular lenses show promise for correcting refractive errors. Custom-design and sizing are crucial for safety and long-term compatibility of these internal lenses.

Area of Science:

  • Ophthalmology
  • Biomedical Engineering
  • Medical Device Technology

Background:

  • Phakic intraocular lenses (PIOLs) are gaining traction for refractive error correction.
  • Addressing limitations of excimer laser refractive surgery is a key driver for PIOL development.
  • Ensuring long-term ocular health and device compatibility is paramount.

Purpose of the Study:

  • To conduct an analytical review of existing phakic intraocular lens data.
  • To critically assess intraocular lens sizing, safety guidelines, and implantation techniques.
  • To evaluate commercial claims related to phakic intraocular lens technologies.

Main Methods:

  • Comprehensive competitive analysis of implantation sites, PIOL designs, and safety protocols.
  • Review of specialized biometry techniques, including very high frequency ultrasound and Scheimpflug imaging.

Related Experiment Videos

  • Critical evaluation of clinical studies and commercial data.

    • Main Results:

    • Phakic intraocular lenses show significant promise for refractive error correction.
    • Custom-design and sizing, potentially guided by VHF ultrasound, appear most effective and safest.
    • Long-term physiological inertness and anatomical compatibility are essential considerations for PIOLs.

    Conclusions:

    • Phakic intraocular lenses offer a viable alternative for specific refractive error cases.
    • Continued critical evaluation of long-term outcomes using advanced imaging is essential.
    • Ensuring safe explantation or exchange options is important for patient safety over time.