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Related Experiment Videos

Gas permeable lenses--a growing trend.

K W Harrison

    Journal of Ophthalmic Nursing & Technology
    |May 1, 1989
    PubMed
    Summary

    Gas permeable lenses offer improved oxygen to the cornea, making contact lens wear safer and more comfortable for more people. These lenses enhance vision quality and reduce allergic reactions by not absorbing cleaning solution chemicals.

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    Area of Science:

    • Ophthalmology
    • Optometry
    • Biomaterials Science

    Background:

    • Contact lens wear is limited for some individuals due to comfort and safety concerns.
    • Soft contact lenses can restrict oxygen supply to the cornea.
    • Allergic reactions to contact lens solutions are a common issue.

    Purpose of the Study:

    • To evaluate the benefits of gas permeable lenses for contact lens wearers.
    • To compare the oxygen permeability of gas permeable lenses with soft lenses.
    • To assess the impact of gas permeable lenses on vision quality and allergic reactions.

    Main Methods:

    • Review of existing literature on gas permeable lens technology.
    • Comparison of oxygen transmissibility data between gas permeable and soft contact lenses.
    • Analysis of patient-reported outcomes regarding vision and comfort.
    • Investigation of material properties related to chemical absorption.

    Main Results:

    • Gas permeable lenses provide superior oxygen availability to the cornea compared to soft lenses.
    • Many individuals previously unable to wear contact lenses can now do so successfully with gas permeable lenses.
    • Improved visual acuity and reduced incidence of allergic reactions were observed.
    • Gas permeable lenses do not absorb chemical preservatives from disinfecting solutions.

    Conclusions:

    • Gas permeable lenses represent a significant advancement in contact lens technology.
    • They offer enhanced safety and comfort, expanding contact lens wearability.
    • These lenses improve vision quality and minimize adverse reactions to solutions.

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