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Related Experiment Videos

Corneal changes in X-linked ichthyosis.

P E Grala

    Journal of the American Optometric Association
    |April 1, 1985
    PubMed
    Summary

    X-linked ichthyosis (XLI) presents with dry, scaling skin. Optometric screening for characteristic corneal opacities aids in definitive diagnosis and carrier identification.

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    Area of Science:

    • Ophthalmology
    • Genetics
    • Dermatology

    Background:

    • X-linked ichthyosis (XLI) is a genetic skin disorder.
    • It causes dry skin and scaling on the trunk and extremities.
    • Differentiating XLI from other ichthyosis forms can be challenging.

    Observation:

    • XLI is associated with a distinct corneal dystrophy.
    • This dystrophy appears as a "frosted" gray-white layer in the corneal stroma.
    • Female carriers often exhibit similar, though less pronounced, corneal opacities.

    Findings:

    • Corneal changes in XLI are highly specific.
    • Optometric examination can definitively diagnose XLI.
    • Ocular findings are present in most female carriers.

    Implications:

    • Ophthalmological assessment is crucial for diagnosing XLI.
    • Early detection of corneal variations aids in identifying female carriers.
    • This facilitates genetic counseling and family planning for affected individuals.