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Related Experiment Videos

Experimental intravitreal 5-fluorocytosine.

M O Yoshizumi, C Silverman

    Annals of Ophthalmology
    |January 1, 1985
    PubMed
    Summary

    Intravitreal 5-fluorocytosine, an antifungal agent, shows no ocular toxicity in rabbit models. This finding supports its potential use for treating fungal eye infections like Candida endophthalmitis.

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    Area of Science:

    • Ophthalmology
    • Mycology
    • Pharmacology

    Background:

    • Candida endophthalmitis is a serious intraocular fungal infection.
    • 5-fluorocytosine is a water-soluble antifungal agent with potential for intravitreal administration.

    Purpose of the Study:

    • To evaluate the ocular toxicity of intravitreal 5-fluorocytosine in a rabbit model.
    • To determine the safety of 5-fluorocytosine for potential treatment of Candida endophthalmitis.

    Main Methods:

    • Intravitreal injections of 100 micrograms of 5-fluorocytosine were administered to rabbits.
    • Ocular toxicity was assessed using slit-lamp biomicroscopy, indirect ophthalmoscopy, electroretinography, and histologic examination.

    Main Results:

    • No detectable ocular injury was observed following intravitreal injection of 5-fluorocytosine.
    • Comprehensive ocular examinations revealed no adverse effects.

    Conclusions:

    • Intravitreal 5-fluorocytosine at a dose of 100 micrograms is well-tolerated in rabbits.
    • These findings suggest 5-fluorocytosine is a potentially safe option for intravitreal therapy in fungal endophthalmitis.

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