The ring of Soemmerring in man: an ultrastructural study

J P Kappelhof, G F Vrensen, P T de Jong, J Pameyer, B L Willekens

    Research output: Contribution to journalArticleProfessionalpeer-review


    The ultrastructure of lens remnants is described and illustrated after extracapsular cataract extraction in 11 pseudophakic human eyes, using scanning and transmission electron microscopy. The retained lens material formed a ringlike structure that was enclosed by the posterior and anterior capsule, as described extensively in the literature, and was found to contain dividing and differentiating epithelium. Both normal and degenerating subcapsular lenticular fibers and a central cataractous region were found. The sealing of the anterior capsular flap to the posterior capsule, although rather tight, had failed to prevent epithelial cells from escaping the ring in 9 out of 11 cases. Inflammatory cells near this sealing place and in the ring were found in all three specimens examined by transmission electron microscopy.

    Original languageEnglish
    Pages (from-to)77-83
    Number of pages7
    JournalGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie
    Issue number1
    Publication statusPublished - 1987


    • Aged
    • Cataract Extraction/adverse effects
    • Corneal Opacity/etiology
    • Epithelium/ultrastructure
    • Female
    • Humans
    • Lens Capsule, Crystalline/surgery
    • Lens, Crystalline/ultrastructure
    • Lenses, Intraocular
    • Male
    • Microscopy, Electron, Scanning
    • Middle Aged


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