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Related Experiment Videos

Visual performance with soft hydrophilic contact lenses.

J S Pointer, B Gilmartin, J R Larke

    American Journal of Optometry and Physiological Optics
    |October 1, 1985
    PubMed
    Summary

    Soft contact lens wearers adapt their vision using a strategy to optimize visual performance when needed. This study quantifies visual performance during the initial adaptation month using a televised test system.

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    Area of Science:

    • Ophthalmology
    • Vision Science
    • Biomedical Engineering

    Background:

    • Soft hydrophilic contact lenses are widely used for refractive correction.
    • Visual performance instability can occur with soft contact lens wear.
    • A televised test system was previously developed to quantify visual performance.

    Purpose of the Study:

    • To evaluate visual performance during the initial adaptation period to soft contact lens wear.
    • To investigate the adaptive strategies employed by soft contact lens wearers.
    • To utilize a televised test system for objective visual performance assessment.

    Main Methods:

    • A clinical study involving 27 experimentally naïve subjects.
    • Utilized a previously developed televised (TV) test system.

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  • Collected data on visual performance scores, response latency, and blink activity.

    • Main Results:

    • Subjects demonstrated an ability to optimize visual performance when necessary.
    • Visual performance, response latency, and blink activity were monitored during the first month of lens wear.
    • Data suggests an adaptive strategy employed by wearers.

    Conclusions:

    • Soft contact lens wearers can actively manage and optimize their visual performance.
    • The televised test system provides a viable method for quantifying visual adaptation.
    • Findings offer insights into the wearer's compensatory mechanisms for visual stability.