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Related Experiment Videos

Preliminary report on the rigid disc lens.

A Galand, M Delmelle

    Journal of Cataract and Refractive Surgery
    |July 1, 1986
    PubMed
    Summary

    A new 9-mm disc intraocular lens (IOL) shows excellent clinical results for capsular bag implantation. This circular implant design appears to improve centration, offering a promising advance in IOL technology.

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    Area of Science:

    • Ophthalmology
    • Biomaterials Science
    • Medical Device Design

    Background:

    • The capsular bag presents specific anatomical requirements for intraocular lens (IOL) implantation.
    • Previous IOL designs have evolved through various prototypes.
    • A single-piece, circular, lenticular implant design is theoretically optimal for the capsular bag.

    Purpose of the Study:

    • To evaluate the clinical efficacy and safety of a novel 9-mm disc intraocular lens.
    • To assess the centration capabilities of the disc lens within the capsular bag.
    • To determine the suitability of this IOL design for routine ophthalmic surgery.

    Main Methods:

    • Implantation of a 9-mm diameter, 7-mm optic, bioconvex, single-piece polymethylmethacrylate disc lens in 61 eyes.
    • Clinical follow-up for up to 18 months post-implantation.
    • Assessment of lens centration and overall clinical outcomes.

    Main Results:

    • Excellent clinical results were observed in the implanted eyes.
    • The 9-mm disc lens demonstrated effective centration within the capsular bag without causing spring-like effects.
    • Insertion requires large mydriasis and viscoelastic material due to the lens's rigidity.

    Conclusions:

    • The circular disc lens represents a significant advancement in IOL design, well-adapted to the capsular bag.
    • The lens facilitates stable centration, contributing to excellent early clinical outcomes.
    • Further studies with a larger patient cohort and longer follow-up are needed to fully validate this IOL.

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