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Related Experiment Videos

Exploring the sting.

J E Josephson, B E Caffery

    Journal of the American Optometric Association
    |April 1, 1987
    PubMed
    Summary
    This summary is machine-generated.

    Contact lens wearers using the AOsept system reported stinging. Researchers found significant pH variations in AOsept and associated salines, recommending buffered saline soaks to mitigate discomfort.

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    Area of Science:

    • Ophthalmology
    • Materials Science

    Background:

    • Hydrogel contact lens wearers using the AOsept system have reported stinging upon insertion.
    • This discomfort suggests potential issues with the solutions used in the lens care system.

    Purpose of the Study:

    • To investigate the pH levels of the AOsept system and various saline solutions used with it.
    • To determine if significant pH differences exist between these solutions.

    Main Methods:

    • Measurement of the pH of the AOsept system.
    • Measurement of the pH of multiple saline solutions used in conjunction with AOsept.

    Main Results:

    • A significant range in pH values was observed across the tested solutions, from 6.57 to 7.25.
    • Variations in pH indicate potential incompatibility or instability in the lens care regimen.

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    Conclusions:

    • The pH variability of solutions used with the AOsept system may contribute to ocular discomfort.
    • Recommends using a sterile buffered saline as a morning soak for patients experiencing stinging with the AOsept system to ensure a more stable pH environment.