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Related Experiment Videos

[Pathogenesis of hurricane keratitis].

F Hoffmann

    Klinische Monatsblatter Fur Augenheilkunde
    |December 1, 1986
    PubMed
    Summary

    Hurricane keratitis, an epithelial disorder in corneal transplants, causes vortex-like defects. This condition is linked to irregular tear film and corneal surface profiles, potentially exacerbated by Healon use.

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    Die Anaesthesiologie·2023

    Area of Science:

    • Ophthalmology
    • Corneal Surgery
    • Wound Healing

    Background:

    • Hurricane keratitis is a postoperative epithelial disorder affecting corneal transplants.
    • The condition presents with characteristic vortex-like epithelial defects.
    • It occurs irrespective of local postoperative therapy.

    Purpose of the Study:

    • To investigate the underlying causes and mechanisms of hurricane keratitis.
    • To correlate the epithelial defects with tear film and corneal surface irregularities.
    • To explore the potential role of specific surgical materials, like Healon, in its development.

    Main Methods:

    • Observation of epithelial defects in corneal transplant patients.
    • Fluorescein staining to visualize tear film and corneal surface topography.
    • Analysis of wound edge approximation and suture tension.
    • Correlation with the use of viscoelastic agents such as Healon.

    Main Results:

    • Epithelial defects exhibit a vortex-like pattern, mirroring satellite imagery of whirlwinds.
    • Vortex-like figures are detectable via fluorescein staining, indicating varying tear film thickness.
    • Irregular corneal surface profiles, leading to irregular astigmatism, are caused by incongruent wound edges and tight sutures.
    • Tight suturing, often employed when using Healon due to expected postoperative pressure increases, is implicated.

    Conclusions:

    • Hurricane keratitis arises from an irregular corneal surface profile and tear film disruption.
    • The condition is indirectly linked to the use of Healon, particularly when tight sutures are necessary.
    • Understanding these mechanisms can inform surgical techniques to minimize the risk of hurricane keratitis.

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