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Related Experiment Videos

Vascular anastomoses between the iris and persistent hyperplastic primary vitreous.

H I Meisels, M F Goldberg

    American Journal of Ophthalmology
    |August 1, 1979
    PubMed
    Summary

    Abnormal iris blood vessels causing pupillary notches can indicate persistent hyperplastic primary vitreous (PHPV) and related syndromes. Early developmental arrest may impact vision, warranting cautious treatment approaches.

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    Area of Science:

    • Ophthalmology
    • Pediatric Ophthalmology
    • Developmental Biology

    Background:

    • Persistent hyperplastic primary vitreous (PHPV) is a congenital condition affecting eye development.
    • Persistence of the tunica vasculosa lentis is another developmental anomaly of the eye.
    • Accurate diagnosis is crucial for appropriate management of pediatric eye conditions.

    Observation:

    • Five children presented with prominent radial iris blood vessels.
    • These abnormal vessels formed small, distinct pupillary notches.
    • The presence of these vessels was noted even with an opaque lens, obscuring direct visualization.

    Findings:

    • The identified iris blood vessels are indicative of persistent hyperplastic primary vitreous (PHPV).
    • This finding aids in diagnosing PHPV and related syndromes when other signs are unclear.

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  • These vessels suggest an early developmental arrest potentially linked to macula and optic nerve abnormalities.

    • Implications:

    • Early detection of PHPV through iris vessel observation is possible.
    • The findings suggest that surgical and amblyopia therapies may have limited efficacy.
    • Treatment decisions for affected children should be made cautiously, considering potential visual outcomes.