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Related Experiment Videos

Automated perimetry: background, instruments and methods.

G L Portney, M A Krohn

    Survey of Ophthalmology
    |January 1, 1978
    PubMed
    Summary
    This summary is machine-generated.

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    Automated perimetry offers reduced testing time and perimetrist involvement with standardized conditions. Calibration is key for comparing results between automated perimetry devices like Octopus and Perimetron.

    Area of Science:

    • Ophthalmology
    • Visual Science
    • Medical Technology

    Background:

    • Automated perimetry aims to streamline visual field testing.
    • Standardized test conditions and accurate calibration are crucial for reliable results.
    • Comparison between automated and manual perimetry methods is essential.

    Purpose of the Study:

    • To evaluate the capabilities of automated perimetry systems.
    • To assess the calibration and operational aspects of automated perimeters.
    • To determine the readiness of automated perimetry for comparison with manual methods.

    Main Methods:

    • Utilized automated perimetry devices: Octopus (threshold static) and Perimetron (kinetic and suprathreshold static).
    • Employed microprocessors and silicone chip circuitry for operation.

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  • Focused on calibration of background luminance and target intensity.

    • Main Results:

    • Both Octopus and Perimetron are fully automated perimeters.
    • Accurate calibration was achieved, meeting visual psychophysicist specifications.
    • Data display and plotting issues remain, but the technology is comparable.

    Conclusions:

    • Automated perimetry reduces the need for perimetrist involvement and testing duration.
    • Accurate calibration ensures comparability of results across different examinations and machines.
    • Automated perimetry is prepared for comprehensive comparison with manual perimetry techniques.