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Related Experiment Videos

Experimental vitreous replacement with perfluorotributylamine.

S Chang, N J Zimmerman, T Iwamoto

    American Journal of Ophthalmology
    |January 15, 1987
    PubMed
    Summary
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    Perfluorotributylamine, a dense liquid fluorochemical, shows potential as a vitreous substitute. While it aids retinal tamponade, it causes cellular changes and disperses into droplets within the vitreous.

    Area of Science:

    • Ophthalmology
    • Biomaterials Science
    • Retinal Surgery

    Background:

    • Perfluorotributylamine is a dense liquid fluorochemical.
    • It has been used in artificial blood substitution.
    • Its potential as a vitreous substitute requires investigation.

    Purpose of the Study:

    • To evaluate perfluorotributylamine as a vitreous substitute.
    • To assess its physical properties and biocompatibility in rabbit eyes.
    • To determine its efficacy in managing retinal detachment.

    Main Methods:

    • Perfluorotributylamine was injected into the vitreous of 38 rabbit eyes.
    • Procedures included mechanical vitrectomy or gas compression.
    • Eyes were observed for up to five months, with clinical and histopathological analysis.

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    Main Results:

    • The liquid occupied the lower vitreous and dispersed into droplets.
    • Cellular clusters formed in the upper vitreous, precipitating on the lens and in cortical vitreous.
    • Perfluorotributylamine provided mechanical retinal tamponade and prevented passage through retinal breaks.
    • Histopathology revealed outer segment defects, reversible upon removal within two days.
    • A cellular response of monocyte-derived macrophages (foam cells) was observed.

    Conclusions:

    • Perfluorotributylamine demonstrates potential as a vitreous substitute, particularly for retinal tamponade.
    • Its dispersion and cellular interactions require further study.
    • Reversibility of retinal changes suggests a limited safe exposure period.