Degenerating collagen fibrils in glaucoma

  • Rob Young
  • Digital Images
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Degenerating collagen fibrils in glaucoma. Rob Young. Attribution-NonCommercial 4.0 International (CC BY-NC 4.0). Source: Wellcome Collection.

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Transmission electron micrograph showing collagen fibrils exhibiting focal swelling and loss of periodic cross banding in the trabecular meshwork of a person with glaucoma. The trabecular meshwork is the structure through which the aqueous humor in the anterior chamber drains into Schlemm's canal. The obstruction of this process may represent a mechanism by which the intraocullar pressure is raised in glaucoma. The proteoglycans that are normally attached to the collagen fibrils have become detached and are seen as small short filaments. The intact fibrils are approximately 120 nm in diameter. Biomedical Image Awards 1999.

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