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Related Experiment Videos

Aphakic soft contact lens update

A R Gasset, W L Houde

    Annals of Ophthalmology
    |November 1, 1978
    PubMed
    Summary
    This summary is machine-generated.

    New lens designs (B3 and F3) effectively address visual acuity issues in aphakic eyes, solving previous fitting problems. These lenses offer a safe and simple solution for non-continuous wear in aphakia.

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    Area of Science:

    • Ophthalmology
    • Optometry
    • Biomedical Engineering

    Background:

    • Previous N series lenses had limitations in correcting visual acuity in aphakic eyes.
    • Issues stemmed from lens design and fitting rationale, leading to uncorrected refractive error.

    Purpose of the Study:

    • To evaluate the efficacy of new lens designs (B3 and F3) for correcting aphakia.
    • To address the fitting challenges associated with previous lens series.

    Main Methods:

    • Introduction of B3 and F3 lenses with optimized base curve and power.
    • Fitting strategy utilizing B3 for flatter corneas (<43.00 D) and F3 for steeper corneas.
    • Clinical evaluation of lens performance and patient outcomes.

    Main Results:

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    • B3 and F3 lenses resolved fitting problems in most aphakic eyes.
    • Successful fitting achieved without compromising simplicity.
    • B3 lenses suitable for corneas <43.00 D, F3 for steeper corneas.
    • J3 lens series found to have no clinical application.

    Conclusions:

    • B3 and F3 lenses provide a safe, efficacious, and simple correction for non-continuous wear in aphakia.
    • These lenses overcome the limitations of previous designs, improving visual outcomes.