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Related Experiment Video

Updated: Nov 19, 2025

Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity
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Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity

Published on: September 20, 2024

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PRESBYOPIA MANAGEMENT WITH DIFFRACTIVE PHAKIC POSTERIOR CHAMBER IOL.

G R Bianchi

    Ceska a Slovenska Oftalmologie : Casopis Ceske Oftalmologicke Spolecnosti a Slovenske Oftalmologicke Spolecnosti
    |January 27, 2021
    PubMed
    Summary
    This summary is machine-generated.

    This study shows that diffractive implantable phakic contact lens (IPCL) surgery is safe and effective for correcting myopia. Patients achieved excellent uncorrected visual acuity for distance, intermediate, and near vision without needing glasses.

    Keywords:
    Presbyopiaphakic intra-ocular lensposterior chamberrefractive surgery

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    Area of Science:

    • Ophthalmology
    • Refractive Surgery
    • Biomedical Engineering

    Background:

    • High myopia presents significant visual challenges.
    • Phakic intraocular lenses offer a refractive correction option.
    • Diffractive technology in IPCLs aims to enhance visual outcomes.

    Purpose of the Study:

    • To assess the safety and refractive efficacy of posterior chamber diffractive implantable phakic contact lens (IPCL) surgery.
    • To evaluate visual acuity and refractive outcomes 12 months post-implantation.

    Main Methods:

    • A prospective case-series study involving 27 patients (54 eyes) undergoing diffractive IPCL surgery.
    • Key metrics evaluated included corneal endothelial cell density (ECD), central corneal thickness (CCT), intraocular pressure (IOP), vault, uncorrected distance visual acuity (UDVA), spherical equivalent (SE), and defocus curve.
    • Postoperative follow-up included slit-lamp examination for cataract development.

    Main Results:

    • Mean SE improved from -5.95 D pre-operatively to -0.25 D at 12 months.
    • UDVA of 20/20 or better was achieved in 24.1% of cases, and 20/25 or better in 74.1%.
    • No significant changes in ECD, CCT, vault, or IOP were observed, and no cataracts developed.

    Conclusions:

    • Diffractive IPCL implantation is a safe procedure.
    • Stable ocular parameters (ECD, CCT, vault, IOP) were maintained 12 months post-surgery.
    • Excellent uncorrected visual acuity for various distances was achieved, demonstrating refractive efficiency.