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Multicomponent intraocular lens

T P Werblin1

  • 1University of Virginia, Charlottesville, USA.

Journal of Refractive Surgery (Thorofare, N.J. : 1995)
|January 1, 1996
PubMed
Summary

A novel multicomponent intraocular lens (IOL) offers adjustable refractive correction, aiming for greater accuracy than current methods. This innovative IOL technology allows for fine-tuning refractive outcomes after initial implantation.

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Area of Science:

  • Ophthalmology
  • Biomedical Engineering
  • Optical Science

Background:

  • Current refractive surgery aims for accuracy comparable to non-surgical methods like glasses and contact lenses.
  • Existing refractive procedures often fall short due to predictability issues, instability, and optical side effects.
  • Conventional intraocular lens (IOL) surgery requires further refinement for optimal refractive outcomes.

Purpose of the Study:

  • To introduce and evaluate the concept of a multicomponent intraocular lens (IOL).
  • To develop an adjustable IOL that enhances the accuracy of refractive surgery.
  • To improve upon conventional IOL technology for better refractive results.

Main Methods:

  • Development of a multicomponent IOL with three optical elements: a base lens and two exchangeable elements (toric and spherical/multifocal caps).
  • The design allows for optional secondary procedures to refine the refractive result.
  • Prototype lenses fabricated from polymethylmethacrylate were assembled and disassembled.

Main Results:

  • Demonstrated the feasibility of the multicomponent IOL concept through in vitro and in vivo (cat eye) assembly/disassembly.
  • Prototype lenses successfully showcased the modular design.
  • The concept allows for in-situ adjustment of optical properties.

Conclusions:

  • The multicomponent IOL represents a significant advancement over conventional IOL technology.
  • This innovative approach enables enhancement and fine-tuning of refractive accuracy post-implantation.
  • The adjustable nature of the IOL promises improved outcomes in refractive surgery.

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