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Related Experiment Video

Updated: Jun 22, 2026

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application
11:49

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Published on: March 8, 2019

Liquid-crystal intraocular adaptive lens with wireless control.

Aleksey N Simonov, Gleb Vdovin, Mikhail Loktev

    Optics Express
    |June 24, 2009
    PubMed
    Summary

    This study introduces an adaptive intraocular lens (IOL) using liquid-crystal technology for wireless visual correction. The novel adaptive IOL prototype demonstrates effective correction of ocular aberrations, offering improved vision quality.

    Area of Science:

    • Ophthalmology
    • Biomedical Engineering
    • Materials Science

    Background:

    • Intraocular lenses (IOLs) are crucial for vision correction after cataract surgery.
    • Current IOLs have limitations in correcting dynamic visual aberrations.
    • Adaptive optics offer potential for advanced visual correction.

    Purpose of the Study:

    • To develop and evaluate a prototype adaptive intraocular lens (IOL) with wireless control.
    • To assess the IOL's capability for correcting ocular aberrations in vitro.
    • To investigate the use of liquid-crystal spatial phase modulators for dynamic vision correction.

    Main Methods:

    • A modal liquid-crystal spatial phase modulator was integrated into an IOL design.
    • The IOL utilized nematic liquid crystals sandwiched between specialized glass substrates.

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  • Wireless radio-frequency control was implemented for adjusting lens parameters.
  • Shack-Hartmann wavefront sensing was used for in vitro performance evaluation.

    • Main Results:

    • The 5-mm clear aperture prototype achieved an initial +12.5 diopter focusing power.
    • Adjustable defocus up to 4 waves (approx. 2.51 diopters) was demonstrated.
    • Correction of spherical aberration coefficients ranged from -0.8 to 0.67 waves.
    • A frequency-switching technique improved response speed to a settling time of ~4 seconds.

    Conclusions:

    • The developed adaptive IOL prototype shows significant potential for dynamic vision correction.
    • Liquid-crystal spatial phase modulation offers a viable method for adaptive optics in IOLs.
    • Wireless control enhances the practicality and applicability of advanced IOLs.