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Radial retroiridal linear pigmentation

G Rieger

    The British Journal of Ophthalmology
    |November 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

    Radial pigmented lines on the lens capsule, remnants of the tunica vasculosa retroiridalis, are observed in adults but not children. These lines likely form from iris pigment abrasion in old age.

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    Area of Science:

    • Ophthalmology
    • Anatomy
    • Histology

    Background:

    • Radial pigmented lines on the anterior lens capsule are historically interpreted as remnants of the tunica vasculosa retroiridalis (membrana capsulopupillaris).
    • These findings are present in approximately 5% of the adult population.

    Purpose of the Study:

    • To investigate the prevalence and potential etiology of radial retroiridal pigmented lines on the anterior lens capsule.

    Main Methods:

    • Examination of adult patients for the presence of radial pigmented lines.
    • Control examination of 1108 children and juveniles to assess age-related prevalence.

    Main Results:

    • Radial retroiridal pigmented lines were found in nearly 5% of adults.

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  • No instances of these pigmented lines were observed in the examined cohort of children and juveniles.

    • Conclusions:

    • The absence of these lines in younger individuals suggests they are acquired rather than congenital.
    • The findings support the hypothesis that pigment release from the iris, due to age-related abrasive movements against the lens, causes these pigmented lines.