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Related Experiment Videos

C.A.B.: a practical contact lens option?

R M Hill

    Journal of the American Optometric Association
    |March 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Rigid gas permeable contact lenses offer prescription advantages over soft lenses. This study examines two rigid materials to assess their performance in meeting corneal oxygen needs, addressing tear pump efficiency challenges.

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    Area of Science:

    • Ophthalmology
    • Materials Science

    Background:

    • Rigid contact lenses offer superior prescription customization and lower costs compared to flexible lenses.
    • Conventional rigid lenses (PMMA) face challenges with tear pump efficiency and corneal oxygenation.

    Purpose of the Study:

    • To evaluate the performance of oxygen-permeable rigid contact lens materials.
    • To determine the adequacy of these materials in meeting the cornea's oxygen requirements.

    Main Methods:

    • Examination of two specific oxygen-permeable rigid contact lens materials.
    • Assessment of material performance in relation to corneal oxygen needs.

    Main Results:

    • Rigid gas permeable materials are presented as a solution to poor tear pump efficiency.

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  • The report details the performance of two materials concerning corneal oxygenation.

    • Conclusions:

    • Oxygen-permeable rigid contact lenses show promise in overcoming the limitations of conventional rigid lenses.
    • Further evaluation is needed to confirm the efficacy of these materials in clinical practice.