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The trabecular mesh: a mathematical analysis

R A Moses, R J Arnzen

    Investigative Ophthalmology & Visual Science
    |December 1, 1980
    PubMed
    Summary
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    The corneoscleral trabecular meshwork

    Area of Science:

    • Ophthalmology and biomechanics.

    Background:

    • The corneoscleral trabecular meshwork (TM) is a complex endothelialized collagenous structure crucial for aqueous humor outflow.
    • Understanding TM biomechanics is vital for glaucoma research, as its function directly impacts intraocular pressure.

    Purpose of the Study:

    • To analyze the geometric and mechanical properties of the trabecular meshwork under tension.
    • To determine the potential for inward bowing of the TM and its effect on Schlemm's canal.

    Main Methods:

    • Geometric analysis of a lamella of the trabecular meshwork.
    • Modeling the meshwork's shape under tension, considering restraining forces.

    Main Results:

    • The trabecular meshwork's structure resists deformation due to attachments and fiber resistance.

    Related Experiment Videos

  • Even with inward bowing to a hyperboloidal shape, the required spur movement is minimal (0.047 mm).
  • This small displacement is unlikely to be visually detected during gonioscopy.

    • Conclusions:

    • The trabecular meshwork's geometry inherently limits significant inward bowing.
    • The biomechanical properties suggest a robust mechanism for maintaining Schlemm's canal patency.
    • Gonioscopic evaluation may not fully capture the dynamic response of the TM to physiological tension.