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Related Experiment Videos

Ant-egg cataract. An electron microscopic study.

H D Schrøder, S H Nissen

    Acta Ophthalmologica
    |June 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    Crystalline calcium salts and intermittent growth structures were observed in ant-egg cataracts. These findings suggest calcifications result from abnormal metabolism and unique cytoplasmic bodies.

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    Area of Science:

    • Ophthalmology
    • Biomineralization
    • Cell Biology

    Background:

    • Ant-egg cataracts present unique ultrastructural features.
    • Understanding lens calcification mechanisms is crucial for ocular health research.

    Purpose of the Study:

    • To investigate the ultrastructure of ant-egg cataractous lenses.
    • To elucidate the nature and origin of calcifications within these lenses.

    Main Methods:

    • Comparative analysis of ethylenediaminetetraacetic acid (EDTA) demineralized and untreated ant-egg lens tissue.
    • Transmission electron microscopy to examine ultrastructural morphology.

    Main Results:

    • Calcium salts within ant-egg cataracts were predominantly crystalline.

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  • EDTA treatment revealed a laminar appearance, suggesting intermittent growth.
  • Membrane-bound cytoplasmic bodies with partially fused/separated membranes were observed.

    • Conclusions:

    • Ant-egg cataract calcifications appear secondary to metabolic abnormalities.
    • The observed cytoplasmic bodies are potential morphological indicators of altered metabolism leading to calcification.