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Contact lens design for lateralizing visual input.

B Sivak, J G Sivak, C L MacKenzie

    Neuropsychologia
    |January 1, 1985
    PubMed
    Summary
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    This study details a novel contact lens design for visual field obstruction in experiments. The specialized lens combines soft and hard components to control visual input during research.

    Area of Science:

    • Ophthalmology
    • Optometry
    • Biomedical Engineering

    Background:

    • Visual field testing is crucial for diagnosing and monitoring various ocular and neurological conditions.
    • Current methods for lateralizing visual input can be complex or invasive.
    • There is a need for precise and adaptable tools to manipulate visual input in research settings.

    Purpose of the Study:

    • To describe the design and function of a novel contact lens for lateralizing visual input.
    • To provide a method for controlled visual field obstruction in experimental settings.
    • To facilitate research requiring specific visual field manipulation.

    Main Methods:

    • A custom contact lens system was designed, comprising a soft carrier lens.
    • A smaller, rigid contact lens is inserted into the carrier lens.

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  • The rigid lens is partially painted black to selectively obstruct portions of the visual field.

    • Main Results:

    • The described contact lens effectively allows for controlled lateralization of visual input.
    • Partial black painting of the hard lens enables precise visual field obstruction.
    • The design offers a practical solution for experimental visual field manipulation.

    Conclusions:

    • This innovative contact lens design provides a valuable tool for researchers.
    • The device facilitates controlled visual input lateralization for experimental purposes.
    • Further applications in visual neuroscience and ophthalmological research are anticipated.