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Phacocryolysis and phacoemulsification

H S Liu, F I Tolentino, J V Greiner

    American Journal of Ophthalmology
    |June 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Rapid freezing and thawing, a process called phacocryolysis, can soften hard nuclear cataracts. This technique may improve ultrasonic emulsification during cataract surgery.

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    Area of Science:

    • Ophthalmology
    • Materials Science

    Background:

    • Hard nuclear cataracts present challenges during ultrasonic emulsification.
    • Phacocryolysis is a technique involving rapid freezing and thawing.

    Purpose of the Study:

    • To investigate the in vitro effects of phacocryolysis on human hard nuclear cataracts.
    • To determine if phacocryolysis facilitates ultrasonic emulsification.

    Main Methods:

    • 100 human hard nuclear cataracts were subjected to rapid freezing and thawing (phacocryolysis) in vitro.
    • Microscopic changes in lens fiber structure were observed post-phacocryolysis.

    Main Results:

    • Phacocryolysis increased the interspace between lens fibers.
    • The normally densely packed fibers appeared loosened after the procedure.

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  • This structural change suggested a softening of the cataractous lens.

    • Conclusions:

    • Phacocryolysis effectively alters the microstructure of hard nuclear cataracts.
    • The observed softening effect of phacocryolysis may enhance the efficiency of ultrasonic emulsification in cataract surgery.