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Empirical impression technique for artificial eye fitting.

J A LeGrand, M O Hughes

    Advances in Ophthalmic Plastic and Reconstructive Surgery
    |January 1, 1990
    PubMed
    Summary
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    The Empirical/Impression method offers an efficient alternative for custom artificial eye creation. This technique streamlines the process, enabling same-day prosthetic eye fitting and reducing laboratory steps.

    Area of Science:

    • Ophthalmology
    • Prosthetics
    • Biomedical Engineering

    Background:

    • Custom artificial eyes are typically designed using impressions of the anophthalmic socket.
    • The established Modified Impression technique involves socket impression followed by wax model modification.
    • This method, while successful, can be time-consuming due to multiple laboratory procedures.

    Purpose of the Study:

    • To introduce and evaluate the efficiency of a novel "Empirical/Impression" method for custom artificial eye fabrication.
    • To compare the Empirical/Impression method with the traditional Modified Impression technique.
    • To highlight the potential for same-day prosthetic eye fitting with the new method.

    Main Methods:

    • The Empirical/Impression method involves initial modification of a wax eye model, followed by using this model as an impression tray for the anophthalmic socket.

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  • This contrasts with the Modified Impression technique, which takes a socket impression first.
  • Both methods require skilled fitters for final prosthesis modifications.

    • Main Results:

    • The Empirical/Impression method significantly reduces laboratory procedures, enabling "one-day custom eye" fabrication.
    • This technique offers comparable success rates to the Modified Impression method.
    • The Modified Impression technique may be preferable for highly irregular sockets where empirical assessment is challenging.

    Conclusions:

    • The Empirical/Impression method presents a more efficient approach to custom artificial eye creation.
    • This technique facilitates same-day prosthetic eye fitting, improving patient convenience.
    • Skilled ocularists are crucial for successful outcomes with either impression technique.