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Fine Structure of Human Trabeculae

Fine Structure of Human Trabeculae Abstract Introduction Although much literature has been published in the past concerning the trabecular meshwork, recent improvements in the technique of electron microscopy, particularly the use of Epon as an embedding medium, have indicated the desirability of additional work in this important area.In 1912, Salzmann's extensive histological study showed that the trabecular meshwork consisted of 2 zones: the uveal trabecular meshwork, which formed a small part of the entire structure, and the corneoscleral trabecular meshwork. Salzmann believed that each corneoscleral trabecula was made up of 4 elements. These included a thick, collagenous core; a thick elastic tissue surrounding the core; a glass membrane; and an endothelial layer which had no borders. He felt that the uveal meshwork differed from the corneoscleral meshwork in lacking elastic fibers and in showing less differentiation between the collagen bundle and the glass membrane.Flocks (1951) showed that each beam of uveal meshwork was circular References 1. Ashton, N.; Brini, A., and Smith, R.: Anatomical Studies of the Trabecular Meshwork of the Normal Human Eye , Brit. J. Ophthal. 40:257, 1956.Crossref 2. Bennett, H. S.: Personal communication to the author, 1960. 3. Flocks, M.: The Anatomy of the Trabecular Meshwork as Seen in Tangential Section , A.M.A. Arch. Ophthal. 56:708, 1956.Crossref 4. Garron, L. K.: The Fine Structure of the Normal Trabecular Apparatus in Man , in Conference on Glaucoma: Transactions of the Fourth Conference , edited by F. W. Newell, New York, Josiah Macy, Jr., Foundation, 1959, published, 1960. 5. Garron and Feeney, M. L.: Electron Microscopic Studies of the Human Eye: II. Study of the Trabeculae by Light and Electron Microscopy , A.M.A. Arch. Ophthal. 62:966, 1959.Crossref 6. Holmberg, A. S.: The Fine Structure of the Inner Wall of Schlemm's Canal , A.M.A. Arch. Ophthal. 62:956, 1959.Crossref 7. Ultrastructure of the Normal Trabecular Apparatus in Man , in Glaucoma, edited by Newell, F. W., Transactions of the Fourth Conference , New York, Josiah Macy, Jr., Foundation Publications, 1959, published, 1960. 8. Jakus, M. A.: The Fine Structure of the Human Cornea , in The Structure of the Eye , edited by G. K. Smelser, New York, The Academic Press, Inc. 1961, p. 343. 9. Palade, G. E., and Siekevitz, P.: Liver Microsomes: An Integrated Morphological and Biochemical Study , J. Biophys. Biochem. Cytol. 2:171, 1956.Crossref 10. Reese, A. B.: Deep-Chamber Glaucoma Due to the Formation of a Cuticular Product in the Filtration Angle , Amer. J. Ophthal. 46:1193, 1944. 11. Rhodin, J., and Dalhamn, T.: Electron Microscopy of Collagen and Elastin in the Lamina Propria of the Tracheal Mucosa of the Rat , Exp. Cell Res. 9:371, 1955.Crossref 12. Rohen, J., and Unger, H. H.: Studies on the Morphology and Pathology of the Trabecular Meshwork in the Human Eye , Amer. J. Ophthal. 46:802, 1958. 13. Salzmann, M.: The Anatomy and Histology of the Human Eyeball in the Normal State, Its Development and Senescence , Translated by E. V. L. Brown, Chicago, University of Chicago Press, 1912. 14. Slautterback, D. B., and Fawcett, D. W.: The Development of the Cnidoblasts of Hydra: An Electron Microscope Study of Cell Differentiation , J. Biophys. Biochem. Cytol. 5:441, 1959.Crossref 15. Speakman, J. S.: Aqueous Outflow Channels in the Trabecular Meshwork in Man , Brit. J. Ophthal. 43:129, 1959.Crossref 16. Vrabec, F.: Studies of the Corneal and Trabecular Endothelium , Brit. J. Ophthal. 42: 667, 1958.Crossref 17. Watson, M. L.: The Nuclear Envelope: Its Structure and Relation to Cytoplasmic Membranes , J. Biophys. Biochem. Cytol. 1:257, 1955.Crossref 18. Staining of Tissue Sections for Electron Microscopy with Heavy Metals , J. Biophys. Biochem. Cytol. 4:475, 1958.Crossref http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

Fine Structure of Human Trabeculae

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Publisher
American Medical Association
Copyright
Copyright © 1962 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1962.00960020773013
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Abstract

Abstract Introduction Although much literature has been published in the past concerning the trabecular meshwork, recent improvements in the technique of electron microscopy, particularly the use of Epon as an embedding medium, have indicated the desirability of additional work in this important area.In 1912, Salzmann's extensive histological study showed that the trabecular meshwork consisted of 2 zones: the uveal trabecular meshwork, which formed a small part of the entire structure, and the corneoscleral trabecular meshwork. Salzmann believed that each corneoscleral trabecula was made up of 4 elements. These included a thick, collagenous core; a thick elastic tissue surrounding the core; a glass membrane; and an endothelial layer which had no borders. He felt that the uveal meshwork differed from the corneoscleral meshwork in lacking elastic fibers and in showing less differentiation between the collagen bundle and the glass membrane.Flocks (1951) showed that each beam of uveal meshwork was circular References 1. Ashton, N.; Brini, A., and Smith, R.: Anatomical Studies of the Trabecular Meshwork of the Normal Human Eye , Brit. J. Ophthal. 40:257, 1956.Crossref 2. Bennett, H. S.: Personal communication to the author, 1960. 3. Flocks, M.: The Anatomy of the Trabecular Meshwork as Seen in Tangential Section , A.M.A. Arch. Ophthal. 56:708, 1956.Crossref 4. Garron, L. K.: The Fine Structure of the Normal Trabecular Apparatus in Man , in Conference on Glaucoma: Transactions of the Fourth Conference , edited by F. W. Newell, New York, Josiah Macy, Jr., Foundation, 1959, published, 1960. 5. Garron and Feeney, M. L.: Electron Microscopic Studies of the Human Eye: II. Study of the Trabeculae by Light and Electron Microscopy , A.M.A. Arch. Ophthal. 62:966, 1959.Crossref 6. Holmberg, A. S.: The Fine Structure of the Inner Wall of Schlemm's Canal , A.M.A. Arch. Ophthal. 62:956, 1959.Crossref 7. Ultrastructure of the Normal Trabecular Apparatus in Man , in Glaucoma, edited by Newell, F. W., Transactions of the Fourth Conference , New York, Josiah Macy, Jr., Foundation Publications, 1959, published, 1960. 8. Jakus, M. A.: The Fine Structure of the Human Cornea , in The Structure of the Eye , edited by G. K. Smelser, New York, The Academic Press, Inc. 1961, p. 343. 9. Palade, G. E., and Siekevitz, P.: Liver Microsomes: An Integrated Morphological and Biochemical Study , J. Biophys. Biochem. Cytol. 2:171, 1956.Crossref 10. Reese, A. B.: Deep-Chamber Glaucoma Due to the Formation of a Cuticular Product in the Filtration Angle , Amer. J. Ophthal. 46:1193, 1944. 11. Rhodin, J., and Dalhamn, T.: Electron Microscopy of Collagen and Elastin in the Lamina Propria of the Tracheal Mucosa of the Rat , Exp. Cell Res. 9:371, 1955.Crossref 12. Rohen, J., and Unger, H. H.: Studies on the Morphology and Pathology of the Trabecular Meshwork in the Human Eye , Amer. J. Ophthal. 46:802, 1958. 13. Salzmann, M.: The Anatomy and Histology of the Human Eyeball in the Normal State, Its Development and Senescence , Translated by E. V. L. Brown, Chicago, University of Chicago Press, 1912. 14. Slautterback, D. B., and Fawcett, D. W.: The Development of the Cnidoblasts of Hydra: An Electron Microscope Study of Cell Differentiation , J. Biophys. Biochem. Cytol. 5:441, 1959.Crossref 15. Speakman, J. S.: Aqueous Outflow Channels in the Trabecular Meshwork in Man , Brit. J. Ophthal. 43:129, 1959.Crossref 16. Vrabec, F.: Studies of the Corneal and Trabecular Endothelium , Brit. J. Ophthal. 42: 667, 1958.Crossref 17. Watson, M. L.: The Nuclear Envelope: Its Structure and Relation to Cytoplasmic Membranes , J. Biophys. Biochem. Cytol. 1:257, 1955.Crossref 18. Staining of Tissue Sections for Electron Microscopy with Heavy Metals , J. Biophys. Biochem. Cytol. 4:475, 1958.Crossref

Journal

Archives of Ophthalmology – American Medical Association

Published: Jun 1, 1962

References

  • Anatomical Studies of the Trabecular Meshwork of the Normal Human Eye
    Ashton , N.; Brini, A., and Smith, R.
  • The Anatomy of the Trabecular Meshwork as Seen in Tangential Section
    Flocks , M.
  • Conference on Glaucoma: Transactions of the Fourth Conference
    Garron , L. K.
  • Electron Microscopic Studies of the Human Eye: II. Study of the Trabeculae by Light and Electron Microscopy
    Garron and Feeney, M. L.
  • The Fine Structure of the Inner Wall of Schlemm's Canal
    Holmberg , A. S.
  • Transactions of the Fourth Conference
  • The Structure of the Eye
    Jakus , M. A.
  • Liver Microsomes: An Integrated Morphological and Biochemical Study
    Palade , G. E., and Siekevitz, P.
  • Deep-Chamber Glaucoma Due to the Formation of a Cuticular Product in the Filtration Angle
    Reese , A. B.
  • Electron Microscopy of Collagen and Elastin in the Lamina Propria of the Tracheal Mucosa of the Rat
    Rhodin , J., and Dalhamn, T.
  • Studies on the Morphology and Pathology of the Trabecular Meshwork in the Human Eye
    Rohen , J., and Unger, H. H.
  • The Anatomy and Histology of the Human Eyeball in the Normal State, Its Development and Senescence
    Salzmann , M.
  • The Development of the Cnidoblasts of Hydra: An Electron Microscope Study of Cell Differentiation
    Slautterback , D. B., and Fawcett, D. W.
  • Aqueous Outflow Channels in the Trabecular Meshwork in Man
    Speakman , J. S.
  • Studies of the Corneal and Trabecular Endothelium
    Vrabec , F.
  • The Nuclear Envelope: Its Structure and Relation to Cytoplasmic Membranes
    Watson , M. L.
  • Staining of Tissue Sections for Electron Microscopy with Heavy Metals