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Keratophakia using preserved lenticules

M H Friedlander, L F Rich, T P Werblin

    Ophthalmology
    |July 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

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    Preserved lenticules for keratophakia offer excellent clarity and corneal curvature correction, matching fresh tissue. This makes the technique more accessible for ophthalmic surgeons.

    Area of Science:

    • Ophthalmology
    • Corneal Surgery
    • Tissue Preservation

    Background:

    • Keratophakia involves using corneal lenticules for refractive correction.
    • The clarity and efficacy of preserved lenticules compared to fresh ones require evaluation.

    Purpose of the Study:

    • To compare the clarity of fresh, glycerine-preserved, and nitrogen-preserved lenticules in keratophakia.
    • To assess the impact of tissue preservation methods on refractive outcomes.

    Main Methods:

    • Cats served as the experimental model.
    • Lenticules were prepared fresh, preserved in glycerine, or preserved in liquid nitrogen.
    • Clarity and corneal curvature changes were evaluated post-implantation.

    Main Results:

    Related Experiment Videos

    • No significant difference in final lenticule clarity was observed between fresh and preserved groups.
    • The desired change in corneal curvature was consistently maintained across all groups.
    • Clinical application in six patients with fresh and nine with preserved lenticules showed comparable clarity and correction.

    Conclusions:

    • Glycerine and liquid nitrogen preservation methods maintain lenticule clarity and refractive efficacy.
    • The use of preserved, precut lenticules can broaden the accessibility of keratophakia to general ophthalmic surgeons.